264919725 has 54 divisors (see below), whose sum is σ = 551993130. Its totient is φ = 121101120.

The previous prime is 264919709. The next prime is 264919747. The reversal of 264919725 is 527919462.

It can be written as a sum of positive squares in 3 ways, for example, as 92102409 + 172817316 = 9597^2 + 13146^2 .

It is not a de Polignac number, because 264919725 - 2⁴ = 264919709 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a congruent number.

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 53 ways as a sum of consecutive naturals, for example, 990 + ... + 23039.

It is an arithmetic number, because the mean of its divisors is an integer number (10222095).

Almost surely, 2^264919725 is an apocalyptic number.

264919725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

264919725 is an abundant number, since it is smaller than the sum of its proper divisors (287073405).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

264919725 is a wasteful number, since it uses less digits than its factorization.

264919725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24059 (or 24044 counting only the distinct ones).

The product of its digits is 272160, while the sum is 45.

The square root of 264919725 is about 16276.3547823215. The cubic root of 264919725 is about 642.2509645663.

The spelling of 264919725 in words is "two hundred sixty-four million, nine hundred nineteen thousand, seven hundred twenty-five".