256352425 has 24 divisors (see below), whose sum is σ = 364905216. Its totient is φ = 175002240.

The previous prime is 256352407. The next prime is 256352461. The reversal of 256352425 is 524253652.

256352425 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 256352425 - 2¹⁷ = 256221353 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 37632 + ... + 43918.

It is an arithmetic number, because the mean of its divisors is an integer number (15204384).

Almost surely, 2^256352425 is an apocalyptic number.

256352425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

256352425 is a deficient number, since it is larger than the sum of its proper divisors (108552791).

256352425 is a wasteful number, since it uses less digits than its factorization.

256352425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6537 (or 6532 counting only the distinct ones).

The product of its digits is 72000, while the sum is 34.

The square root of 256352425 is about 16011.0094934704. The cubic root of 256352425 is about 635.2516620854.

The spelling of 256352425 in words is "two hundred fifty-six million, three hundred fifty-two thousand, four hundred twenty-five".