264569425 has 24 divisors (see below), whose sum is σ = 338675000. Its totient is φ = 204871680.

The previous prime is 264569401. The next prime is 264569429. The reversal of 264569425 is 524965462.

It can be written as a sum of positive squares in 12 ways, for example, as 2259009 + 262310416 = 1503^2 + 16196^2 .

It is a de Polignac number, because none of the positive numbers 2^k-264569425 is a prime.

It is not an unprimeable number, because it can be changed into a prime (264569429) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 211201 + ... + 212449.

Almost surely, 2^264569425 is an apocalyptic number.

264569425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

264569425 is a deficient number, since it is larger than the sum of its proper divisors (74105575).

264569425 is a wasteful number, since it uses less digits than its factorization.

264569425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1525 (or 1520 counting only the distinct ones).

The product of its digits is 518400, while the sum is 43.

The square root of 264569425 is about 16265.5902136996. The cubic root of 264569425 is about 641.9677595957.

The spelling of 264569425 in words is "two hundred sixty-four million, five hundred sixty-nine thousand, four hundred twenty-five".