265358072734225 has 27 divisors (see below), whose sum is σ = 335374982764689. Its totient is φ = 208277665034400.

The previous prime is 265358072734219. The next prime is 265358072734343. The reversal of 265358072734225 is 522437270853562.

The square root of 265358072734225 is 16289815.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 1998923751889 + 263359148982336 = 1413833^2 + 16228344^2 .

It is not a de Polignac number, because 265358072734225 - 2³ = 265358072734217 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 4316770240 + ... + 4316831710.

Almost surely, 2^{265358072734225} is an apocalyptic number.

265358072734225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

265358072734225 is the 16289815-th square number.

265358072734225 is the 8144908-th centered octagonal number.

It is an amenable number.

265358072734225 is a deficient number, since it is larger than the sum of its proper divisors (70016910030464).

265358072734225 is an frugal number, since it uses more digits than its factorization.

265358072734225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123058 (or 61529 counting only the distinct ones).

The product of its (nonzero) digits is 169344000, while the sum is 61.

The spelling of 265358072734225 in words is "two hundred sixty-five trillion, three hundred fifty-eight billion, seventy-two million, seven hundred thirty-four thousand, two hundred twenty-five".