256101570825 has 12 divisors (see below), whose sum is σ = 423421263888. Its totient is φ = 136587504400.

The previous prime is 256101570793. The next prime is 256101570839. The reversal of 256101570825 is 528075101652.

It is not a de Polignac number, because 256101570825 - 2⁵ = 256101570793 is a prime.

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, 1707343731 + ... + 1707343880.

It is an arithmetic number, because the mean of its divisors is an integer number (35285105324).

Almost surely, 2^256101570825 is an apocalyptic number.

256101570825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

256101570825 is a deficient number, since it is larger than the sum of its proper divisors (167319693063).

256101570825 is a wasteful number, since it uses less digits than its factorization.

256101570825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3414687624 (or 3414687619 counting only the distinct ones).

The product of its (nonzero) digits is 168000, while the sum is 42.

The spelling of 256101570825 in words is "two hundred fifty-six billion, one hundred one million, five hundred seventy thousand, eight hundred twenty-five".