264339025 has 12 divisors (see below), whose sum is σ = 328002444. Its totient is φ = 211328000.

The previous prime is 264338969. The next prime is 264339029. The reversal of 264339025 is 520933462.

264339025 = 11496² + 11497².

It can be written as a sum of positive squares in 6 ways, for example, as 41254929 + 223084096 = 6423^2 + 14936^2 .

It is not a de Polignac number, because 264339025 - 2¹⁵ = 264306257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (264339029) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 49485 + ... + 54565.

It is an arithmetic number, because the mean of its divisors is an integer number (27333537).

Almost surely, 2^264339025 is an apocalyptic number.

264339025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

264339025 is the 11497-th centered square number.

It is an amenable number.

264339025 is a deficient number, since it is larger than the sum of its proper divisors (63663419).

264339025 is a wasteful number, since it uses less digits than its factorization.

264339025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7172 (or 7167 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 34.

The square root of 264339025 is about 16258.5062351989. The cubic root of 264339025 is about 641.7813531630.

The spelling of 264339025 in words is "two hundred sixty-four million, three hundred thirty-nine thousand, twenty-five".