252657969 has 8 divisors (see below), whose sum is σ = 337064832. Its totient is φ = 168344880.

The previous prime is 252657901. The next prime is 252657983. The reversal of 252657969 is 969756252.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-252657969 is a prime.

It is a super-2 number, since 2×252657969² = 127672098598409922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (252657989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16894 + ... + 28119.

It is an arithmetic number, because the mean of its divisors is an integer number (42133104).

Almost surely, 2^252657969 is an apocalyptic number.

It is an amenable number.

252657969 is a deficient number, since it is larger than the sum of its proper divisors (84406863).

252657969 is a wasteful number, since it uses less digits than its factorization.

252657969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46887.

The product of its digits is 2041200, while the sum is 51.

The square root of 252657969 is about 15895.2184319688. The cubic root of 252657969 is about 632.1852133350.

The spelling of 252657969 in words is "two hundred fifty-two million, six hundred fifty-seven thousand, nine hundred sixty-nine".