256674225 has 12 divisors (see below), whose sum is σ = 424368176. Its totient is φ = 136892880.

The previous prime is 256674167. The next prime is 256674233. The reversal of 256674225 is 522476652.

256674225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 256674225 - 2⁸ = 256673969 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1711087 + ... + 1711236.

Almost surely, 2^256674225 is an apocalyptic number.

256674225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

256674225 is a deficient number, since it is larger than the sum of its proper divisors (167693951).

256674225 is a wasteful number, since it uses less digits than its factorization.

256674225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3422336 (or 3422331 counting only the distinct ones).

The product of its digits is 201600, while the sum is 39.

The square root of 256674225 is about 16021.0556768273. The cubic root of 256674225 is about 635.5173620704.

It can be divided in two parts, 25667 and 4225, that added together give a palindrome (29892).

The spelling of 256674225 in words is "two hundred fifty-six million, six hundred seventy-four thousand, two hundred twenty-five".