252651536 has 40 divisors (see below), whose sum is σ = 496646040. Its totient is φ = 124498944.

The previous prime is 252651533. The next prime is 252651547. The reversal of 252651536 is 635156252.

It can be written as a sum of positive squares in 4 ways, for example, as 42981136 + 209670400 = 6556^2 + 14480^2 .

It is a junction number, because it is equal to n+sod(n) for n = 252651496 and 252651505.

It is not an unprimeable number, because it can be changed into a prime (252651533) 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 7 ways as a sum of consecutive naturals, for example, 552620 + ... + 553076.

It is an arithmetic number, because the mean of its divisors is an integer number (12416151).

Almost surely, 2^252651536 is an apocalyptic number.

It is an amenable number.

252651536 is a deficient number, since it is larger than the sum of its proper divisors (243994504).

252651536 is a wasteful number, since it uses less digits than its factorization.

252651536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 891 (or 885 counting only the distinct ones).

The product of its digits is 54000, while the sum is 35.

The square root of 252651536 is about 15895.0160742291. The cubic root of 252651536 is about 632.1798478706.

The spelling of 252651536 in words is "two hundred fifty-two million, six hundred fifty-one thousand, five hundred thirty-six".