256065030 has 64 divisors (see below), whose sum is σ = 735376320. Its totient is φ = 63030528.

The previous prime is 256065023. The next prime is 256065079. The reversal of 256065030 is 30560652.

256065030 is a `hidden beast` number, since 2 + 5 + 6 + 0 + 650 + 3 + 0 = 666.

256065030 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 256064985 and 256065003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32967 + ... + 39986.

It is an arithmetic number, because the mean of its divisors is an integer number (11490255).

Almost surely, 2^256065030 is an apocalyptic number.

256065030 is an abundant number, since it is smaller than the sum of its proper divisors (479311290).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

256065030 is a wasteful number, since it uses less digits than its factorization.

256065030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72982 (or 72976 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The square root of 256065030 is about 16002.0320584606. The cubic root of 256065030 is about 635.0141811783.

The spelling of 256065030 in words is "two hundred fifty-six million, sixty-five thousand, thirty".