264320925 has 24 divisors (see below), whose sum is σ = 476740320. Its totient is φ = 128155200.

The previous prime is 264320921. The next prime is 264320977. The reversal of 264320925 is 529023462.

It is not a de Polignac number, because 264320925 - 2² = 264320921 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (264320921) 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 23 ways as a sum of consecutive naturals, for example, 159370 + ... + 161019.

It is an arithmetic number, because the mean of its divisors is an integer number (19864180).

Almost surely, 2^264320925 is an apocalyptic number.

264320925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

264320925 is a deficient number, since it is larger than the sum of its proper divisors (212419395).

264320925 is a wasteful number, since it uses less digits than its factorization.

264320925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320413 (or 320408 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 33.

The square root of 264320925 is about 16257.9495939679. The cubic root of 264320925 is about 641.7667046668.

The spelling of 264320925 in words is "two hundred sixty-four million, three hundred twenty thousand, nine hundred twenty-five".