252656051 has 2 divisors, whose sum is σ = 252656052. Its totient is φ = 252656050.

The previous prime is 252656039. The next prime is 252656077. The reversal of 252656051 is 150656252.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 252656051 - 2¹⁸ = 252393907 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 252655999 and 252656017.

It is not a weakly prime, because it can be changed into another prime (252656011) 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 as a sum of consecutive naturals, namely, 126328025 + 126328026.

It is an arithmetic number, because the mean of its divisors is an integer number (126328026).

Almost surely, 2^252656051 is an apocalyptic number.

252656051 is a deficient number, since it is larger than the sum of its proper divisors (1).

252656051 is an equidigital number, since it uses as much as digits as its factorization.

252656051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18000, while the sum is 32.

The square root of 252656051 is about 15895.1580992452. The cubic root of 252656051 is about 632.1836136304.

The spelling of 252656051 in words is "two hundred fifty-two million, six hundred fifty-six thousand, fifty-one".