264056531 has 4 divisors (see below), whose sum is σ = 271193232. Its totient is φ = 256919832.

The previous prime is 264056489. The next prime is 264056567. The reversal of 264056531 is 135650462.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 264056531 - 2²² = 259862227 is a prime.

It is a super-2 number, since 2×264056531² = 139451703127507922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (264056591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3568295 + ... + 3568368.

It is an arithmetic number, because the mean of its divisors is an integer number (67798308).

Almost surely, 2^264056531 is an apocalyptic number.

264056531 is a deficient number, since it is larger than the sum of its proper divisors (7136701).

264056531 is an equidigital number, since it uses as much as digits as its factorization.

264056531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7136700.

The product of its (nonzero) digits is 21600, while the sum is 32.

The square root of 264056531 is about 16249.8163374236. The cubic root of 264056531 is about 641.5526519038.

The spelling of 264056531 in words is "two hundred sixty-four million, fifty-six thousand, five hundred thirty-one".