265853025 has 27 divisors (see below), whose sum is σ = 476610771. Its totient is φ = 141657840.

The previous prime is 265853023. The next prime is 265853051. The reversal of 265853025 is 520358562.

It is a happy number.

The square root of 265853025 is 16305.

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

265853025 is a `hidden beast` number, since 26 + 585 + 30 + 25 = 666.

265853025 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 95707089 + 170145936 = 9783^2 + 13044^2 .

It is not a de Polignac number, because 265853025 - 2¹ = 265853023 is a prime.

It is not an unprimeable number, because it can be changed into a prime (265853023) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 244032 + ... + 245118.

Almost surely, 2^265853025 is an apocalyptic number.

265853025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

265853025 is the 16305-th square number.

265853025 is the 8153-rd centered octagonal number.

It is an amenable number.

265853025 is a deficient number, since it is larger than the sum of its proper divisors (210757746).

265853025 is an equidigital number, since it uses as much as digits as its factorization.

265853025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2190 (or 1095 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

The cubic root of 265853025 is about 643.0042874813.

Multiplying 265853025 by its sum of digits (36), we get a square (9570708900 = 97830²).

The spelling of 265853025 in words is "two hundred sixty-five million, eight hundred fifty-three thousand, twenty-five".