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52501075 = 5211190913
BaseRepresentation
bin1100100001000…
…1101001010011
310122210022221021
43020101221103
5101420013300
65113140311
71205152234
oct310215123
9118708837
1052501075
11276a9920
12156ba697
13ab52933
146d8908b
154920d1a
hex3211a53

52501075 has 12 divisors (see below), whose sum is σ = 71020008. Its totient is φ = 38182400.

The previous prime is 52501067. The next prime is 52501079. The reversal of 52501075 is 57010525.

It is a happy number.

It is not a de Polignac number, because 52501075 - 23 = 52501067 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52501079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 95182 + ... + 95731.

It is an arithmetic number, because the mean of its divisors is an integer number (5918334).

Almost surely, 252501075 is an apocalyptic number.

52501075 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

52501075 is a deficient number, since it is larger than the sum of its proper divisors (18518933).

52501075 is a wasteful number, since it uses less digits than its factorization.

52501075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190934 (or 190929 counting only the distinct ones).

The product of its (nonzero) digits is 1750, while the sum is 25.

The square root of 52501075 is about 7245.7625547626. The cubic root of 52501075 is about 374.4461750698.

The spelling of 52501075 in words is "fifty-two million, five hundred one thousand, seventy-five".

Divisors: 1 5 11 25 55 275 190913 954565 2100043 4772825 10500215 52501075