264624425 has 18 divisors (see below), whose sum is σ = 355322682. Its totient is φ = 195411840.

The previous prime is 264624421. The next prime is 264624443. The reversal of 264624425 is 524426462.

It can be written as a sum of positive squares in 9 ways, for example, as 208629136 + 55995289 = 14444^2 + 7483^2 .

It is not a de Polignac number, because 264624425 - 2² = 264624421 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (264624421) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 27092 + ... + 35541.

It is an arithmetic number, because the mean of its divisors is an integer number (19740149).

Almost surely, 2^264624425 is an apocalyptic number.

264624425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

264624425 is a deficient number, since it is larger than the sum of its proper divisors (90698257).

264624425 is a wasteful number, since it uses less digits than its factorization.

264624425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62669 (or 62651 counting only the distinct ones).

The product of its digits is 92160, while the sum is 35.

The square root of 264624425 is about 16267.2808114940. The cubic root of 264624425 is about 642.0122416573.

The spelling of 264624425 in words is "two hundred sixty-four million, six hundred twenty-four thousand, four hundred twenty-five".