264531490725 has 24 divisors (see below), whose sum is σ = 463085717760. Its totient is φ = 132784433920.

The previous prime is 264531490697. The next prime is 264531490733. The reversal of 264531490725 is 527094135462.

It is not a de Polignac number, because 264531490725 - 2²¹ = 264529393573 is a prime.

It is a super-2 number, since 2×264531490725² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 103736565 + ... + 103739114.

It is an arithmetic number, because the mean of its divisors is an integer number (19295238240).

Almost surely, 2^264531490725 is an apocalyptic number.

264531490725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

264531490725 is a deficient number, since it is larger than the sum of its proper divisors (198554227035).

264531490725 is a wasteful number, since it uses less digits than its factorization.

264531490725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207475709 (or 207475704 counting only the distinct ones).

The product of its (nonzero) digits is 1814400, while the sum is 48.

The spelling of 264531490725 in words is "two hundred sixty-four billion, five hundred thirty-one million, four hundred ninety thousand, seven hundred twenty-five".