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52502757 = 319248479
BaseRepresentation
bin1100100001001…
…0000011100101
310122210102020120
43020102003211
5101420042012
65113152153
71205160156
oct310220345
9118712216
1052502757
112770010a
12156bb659
13ab53628
146d8992d
15492158c
hex32120e5

52502757 has 12 divisors (see below), whose sum is σ = 73883520. Its totient is φ = 33158952.

The previous prime is 52502753. The next prime is 52502771. The reversal of 52502757 is 75720525.

It is not a de Polignac number, because 52502757 - 22 = 52502753 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52502753) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23157 + ... + 25322.

It is an arithmetic number, because the mean of its divisors is an integer number (6156960).

Almost surely, 252502757 is an apocalyptic number.

52502757 is a gapful number since it is divisible by the number (57) formed by its first and last digit.

It is an amenable number.

52502757 is a deficient number, since it is larger than the sum of its proper divisors (21380763).

52502757 is a wasteful number, since it uses less digits than its factorization.

52502757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48520 (or 48501 counting only the distinct ones).

The product of its (nonzero) digits is 24500, while the sum is 33.

The square root of 52502757 is about 7245.8786216718. The cubic root of 52502757 is about 374.4501737926.

The spelling of 52502757 in words is "fifty-two million, five hundred two thousand, seven hundred fifty-seven".

Divisors: 1 3 19 57 361 1083 48479 145437 921101 2763303 17500919 52502757