390625000256 has 28 divisors (see below), whose sum is σ = 776508853380. Its totient is φ = 194969226240.

The previous prime is 390625000223. The next prime is 390625000301. The reversal of 390625000256 is 652000526093.

It can be written as a sum of positive squares in 2 ways, for example, as 64373838400 + 326251161856 = 253720^2 + 571184^2 .

It is a sliding number, since 390625000256 = 256 + 390625000000 and 1/256 + 1/390625000000 = 0.00390625000256.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5326955 + ... + 5399786.

Almost surely, 2^390625000256 is an apocalyptic number.

It is an amenable number.

390625000256 is a deficient number, since it is larger than the sum of its proper divisors (385883853124).

390625000256 is a wasteful number, since it uses less digits than its factorization.

390625000256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10727322 (or 10727312 counting only the distinct ones).

The product of its (nonzero) digits is 97200, while the sum is 38.

It can be divided in two parts, 390625000 and 256, that multiplied together give a 11-th power (100000000000 = 10¹¹).

The spelling of 390625000256 in words is "three hundred ninety billion, six hundred twenty-five million, two hundred fifty-six", and thus it is an aban number.