264564457 has 8 divisors (see below), whose sum is σ = 270748800. Its totient is φ = 258403344.

The previous prime is 264564451. The next prime is 264564479. The reversal of 264564457 is 754465462.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 264564457 - 2³ = 264564449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (264564451) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18394 + ... + 29452.

It is an arithmetic number, because the mean of its divisors is an integer number (33843600).

Almost surely, 2^264564457 is an apocalyptic number.

It is an amenable number.

264564457 is a deficient number, since it is larger than the sum of its proper divisors (6184343).

264564457 is a wasteful number, since it uses less digits than its factorization.

264564457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11615.

The product of its digits is 806400, while the sum is 43.

The square root of 264564457 is about 16265.4374979587. The cubic root of 264564457 is about 641.9637413489.

The spelling of 264564457 in words is "two hundred sixty-four million, five hundred sixty-four thousand, four hundred fifty-seven".