264538375 has 8 divisors (see below), whose sum is σ = 330144048. Its totient is φ = 211630600.

The previous prime is 264538357. The next prime is 264538397. The reversal of 264538375 is 573835462.

It is not a de Polignac number, because 264538375 - 2²⁵ = 230983943 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1058029 + ... + 1058278.

It is an arithmetic number, because the mean of its divisors is an integer number (41268006).

Almost surely, 2^264538375 is an apocalyptic number.

264538375 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

264538375 is a deficient number, since it is larger than the sum of its proper divisors (65605673).

264538375 is an equidigital number, since it uses as much as digits as its factorization.

264538375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2116322 (or 2116312 counting only the distinct ones).

The product of its digits is 604800, while the sum is 43.

The square root of 264538375 is about 16264.6357167937. The cubic root of 264538375 is about 641.9426447275.

The spelling of 264538375 in words is "two hundred sixty-four million, five hundred thirty-eight thousand, three hundred seventy-five".