264040625 has 24 divisors (see below), whose sum is σ = 347477760. Its totient is φ = 200070000.

The previous prime is 264040591. The next prime is 264040631. The reversal of 264040625 is 526040462.

It is not a de Polignac number, because 264040625 - 2⁶ = 264040561 is a prime.

It is an unprimeable number.

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, 57152 + ... + 61598.

It is an arithmetic number, because the mean of its divisors is an integer number (14478240).

Almost surely, 2^264040625 is an apocalyptic number.

264040625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

264040625 is a deficient number, since it is larger than the sum of its proper divisors (83437135).

264040625 is an frugal number, since it uses more digits than its factorization.

264040625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4491 (or 4471 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 29.

The square root of 264040625 is about 16249.3269091369. The cubic root of 264040625 is about 641.5397698877.

The spelling of 264040625 in words is "two hundred sixty-four million, forty thousand, six hundred twenty-five".