256106562 has 32 divisors (see below), whose sum is σ = 536653824. Its totient is φ = 81378000.

The previous prime is 256106497. The next prime is 256106573. The reversal of 256106562 is 265601652.

It is a happy 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, 2187 + ... + 22737.

It is an arithmetic number, because the mean of its divisors is an integer number (16770432).

Almost surely, 2^256106562 is an apocalyptic number.

256106562 is an abundant number, since it is smaller than the sum of its proper divisors (280547262).

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

256106562 is a wasteful number, since it uses less digits than its factorization.

256106562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20654.

The product of its (nonzero) digits is 21600, while the sum is 33.

The square root of 256106562 is about 16003.3297160310. The cubic root of 256106562 is about 635.0485109776.

The spelling of 256106562 in words is "two hundred fifty-six million, one hundred six thousand, five hundred sixty-two".