256232625 has 48 divisors (see below), whose sum is σ = 468738816. Its totient is φ = 124212000.

The previous prime is 256232623. The next prime is 256232633. The reversal of 256232625 is 526232652.

It is not a de Polignac number, because 256232625 - 2¹ = 256232623 is a prime.

It is a super-2 number, since 2×256232625² = 131310316228781250, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (256232621) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 42552 + ... + 48198.

It is an arithmetic number, because the mean of its divisors is an integer number (9765392).

Almost surely, 2^256232625 is an apocalyptic number.

256232625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

256232625 is a deficient number, since it is larger than the sum of its proper divisors (212506191).

256232625 is a wasteful number, since it uses less digits than its factorization.

256232625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5687 (or 5666 counting only the distinct ones).

The product of its digits is 43200, while the sum is 33.

The square root of 256232625 is about 16007.2678805598. The cubic root of 256232625 is about 635.1526902537.

The spelling of 256232625 in words is "two hundred fifty-six million, two hundred thirty-two thousand, six hundred twenty-five".