256054002625 has 16 divisors (see below), whose sum is σ = 322383336912. Its totient is φ = 203030419200.

The previous prime is 256054002599. The next prime is 256054002649. The reversal of 256054002625 is 526200450652.

It can be written as a sum of positive squares in 8 ways, for example, as 163057670416 + 92996332209 = 403804^2 + 304953^2 .

It is not a de Polignac number, because 256054002625 - 2¹⁷ = 256053871553 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9049734 + ... + 9077983.

It is an arithmetic number, because the mean of its divisors is an integer number (20148958557).

Almost surely, 2^256054002625 is an apocalyptic number.

256054002625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

256054002625 is a deficient number, since it is larger than the sum of its proper divisors (66329334287).

256054002625 is a wasteful number, since it uses less digits than its factorization.

256054002625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18127845 (or 18127835 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 37.

The spelling of 256054002625 in words is "two hundred fifty-six billion, fifty-four million, two thousand, six hundred twenty-five".