252509546867 has 2 divisors, whose sum is σ = 252509546868. Its totient is φ = 252509546866.

The previous prime is 252509546857. The next prime is 252509546899. The reversal of 252509546867 is 768645905252.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 252509546867 - 2¹² = 252509542771 is a prime.

It is a super-2 number, since 2×252509546867² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (252509546857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126254773433 + 126254773434.

It is an arithmetic number, because the mean of its divisors is an integer number (126254773434).

Almost surely, 2^252509546867 is an apocalyptic number.

252509546867 is a deficient number, since it is larger than the sum of its proper divisors (1).

252509546867 is an equidigital number, since it uses as much as digits as its factorization.

252509546867 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36288000, while the sum is 59.

The spelling of 252509546867 in words is "two hundred fifty-two billion, five hundred nine million, five hundred forty-six thousand, eight hundred sixty-seven".