252425657 has 16 divisors (see below), whose sum is σ = 286070400. Its totient is φ = 220631040.

The previous prime is 252425647. The next prime is 252425669. The reversal of 252425657 is 756524252.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 252425657 - 2¹⁴ = 252409273 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 252425657.

It is not an unprimeable number, because it can be changed into a prime (252425617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80444 + ... + 83522.

It is an arithmetic number, because the mean of its divisors is an integer number (17879400).

Almost surely, 2^252425657 is an apocalyptic number.

It is an amenable number.

252425657 is a deficient number, since it is larger than the sum of its proper divisors (33644743).

252425657 is a wasteful number, since it uses less digits than its factorization.

252425657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3376.

The product of its digits is 168000, while the sum is 38.

The square root of 252425657 is about 15887.9091450071. The cubic root of 252425657 is about 631.9913949918.

The spelling of 252425657 in words is "two hundred fifty-two million, four hundred twenty-five thousand, six hundred fifty-seven".