252620651 has 2 divisors, whose sum is σ = 252620652. Its totient is φ = 252620650.

The previous prime is 252620647. The next prime is 252620659. The reversal of 252620651 is 156026252.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 252620651 - 2² = 252620647 is a prime.

It is equal to p_13814822 and since 252620651 and 13814822 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (252620659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126310325 + 126310326.

It is an arithmetic number, because the mean of its divisors is an integer number (126310326).

Almost surely, 2^252620651 is an apocalyptic number.

252620651 is a deficient number, since it is larger than the sum of its proper divisors (1).

252620651 is an equidigital number, since it uses as much as digits as its factorization.

252620651 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 252620651 is about 15894.0445135906. The cubic root of 252620651 is about 632.1540868685.

The spelling of 252620651 in words is "two hundred fifty-two million, six hundred twenty thousand, six hundred fifty-one".