252501331 has 2 divisors, whose sum is σ = 252501332. Its totient is φ = 252501330.

The previous prime is 252501311. The next prime is 252501377. The reversal of 252501331 is 133105252.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 252501331 - 2⁹ = 252500819 is a prime.

It is a super-2 number, since 2×252501331² = 127513844313543122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (252501311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126250665 + 126250666.

It is an arithmetic number, because the mean of its divisors is an integer number (126250666).

Almost surely, 2^252501331 is an apocalyptic number.

252501331 is a deficient number, since it is larger than the sum of its proper divisors (1).

252501331 is an equidigital number, since it uses as much as digits as its factorization.

252501331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 252501331 is about 15890.2904630469. The cubic root of 252501331 is about 632.0545430081.

Adding to 252501331 its reverse (133105252), we get a palindrome (385606583).

The spelling of 252501331 in words is "two hundred fifty-two million, five hundred one thousand, three hundred thirty-one".