264455631 has 32 divisors (see below), whose sum is σ = 428313600. Its totient is φ = 159935040.

The previous prime is 264455603. The next prime is 264455671. The reversal of 264455631 is 136554462.

264455631 is a `hidden beast` number, since 2 + 644 + 5 + 5 + 6 + 3 + 1 = 666.

It is not a de Polignac number, because 264455631 - 2⁵ = 264455599 is a prime.

It is a super-2 number, since 2×264455631² = 139873561535216322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (264455671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 254010 + ... + 255048.

It is an arithmetic number, because the mean of its divisors is an integer number (13384800).

Almost surely, 2^264455631 is an apocalyptic number.

264455631 is a deficient number, since it is larger than the sum of its proper divisors (163857969).

264455631 is a wasteful number, since it uses less digits than its factorization.

264455631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1916 (or 1910 counting only the distinct ones).

The product of its digits is 86400, while the sum is 36.

The square root of 264455631 is about 16262.0918396128. The cubic root of 264455631 is about 641.8757074432.

The spelling of 264455631 in words is "two hundred sixty-four million, four hundred fifty-five thousand, six hundred thirty-one".