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52500552 = 23313191881
BaseRepresentation
bin1100100001000…
…1100001001000
310122210022012220
43020101201020
5101420004202
65113134040
71205150556
oct310214110
9118708186
1052500552
11276a9495
12156ba320
13ab52620
146d88bd6
154920abc
hex3211848

52500552 has 64 divisors (see below), whose sum is σ = 142248960. Its totient is φ = 16051200.

The previous prime is 52500529. The next prime is 52500557. The reversal of 52500552 is 25500525.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (52500557) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59152 + ... + 60032.

It is an arithmetic number, because the mean of its divisors is an integer number (2222640).

Almost surely, 252500552 is an apocalyptic number.

52500552 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52500552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71124480).

52500552 is an abundant number, since it is smaller than the sum of its proper divisors (89748408).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

52500552 is a wasteful number, since it uses less digits than its factorization.

52500552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1094 (or 1090 counting only the distinct ones).

The product of its (nonzero) digits is 2500, while the sum is 24.

The square root of 52500552 is about 7245.7264646135. The cubic root of 52500552 is about 374.4449316921. Note that the first 3 decimals are identical.

The spelling of 52500552 in words is "fifty-two million, five hundred thousand, five hundred fifty-two".

Divisors: 1 2 3 4 6 8 12 13 24 26 39 52 78 104 156 191 312 382 573 764 881 1146 1528 1762 2292 2483 2643 3524 4584 4966 5286 7048 7449 9932 10572 11453 14898 19864 21144 22906 29796 34359 45812 59592 68718 91624 137436 168271 274872 336542 504813 673084 1009626 1346168 2019252 2187523 4038504 4375046 6562569 8750092 13125138 17500184 26250276 52500552