256070685 has 32 divisors (see below), whose sum is σ = 442124928. Its totient is φ = 125809920.

The previous prime is 256070627. The next prime is 256070693. The reversal of 256070685 is 586070652.

It is a happy number.

256070685 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 256070685 - 2⁷ = 256070557 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

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, 126330 + ... + 128340.

It is an arithmetic number, because the mean of its divisors is an integer number (13816404).

Almost surely, 2^256070685 is an apocalyptic number.

It is an amenable number.

256070685 is a deficient number, since it is larger than the sum of its proper divisors (186054243).

256070685 is a wasteful number, since it uses less digits than its factorization.

256070685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2685.

The product of its (nonzero) digits is 100800, while the sum is 39.

The square root of 256070685 is about 16002.2087537940. The cubic root of 256070685 is about 635.0188557445.

The spelling of 256070685 in words is "two hundred fifty-six million, seventy thousand, six hundred eighty-five".