856256103 has 10 divisors (see below), whose sum is σ = 1279098744. Its totient is φ = 570837348.

The previous prime is 856256101. The next prime is 856256111. The reversal of 856256103 is 301652658.

It is not a de Polignac number, because 856256103 - 2¹ = 856256101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (856256101) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 5285451 + ... + 5285612.

Almost surely, 2^856256103 is an apocalyptic number.

856256103 is a deficient number, since it is larger than the sum of its proper divisors (422842641).

856256103 is a wasteful number, since it uses less digits than its factorization.

856256103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10571075 (or 10571066 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The square root of 856256103 is about 29261.8540595089. The cubic root of 856256103 is about 949.5865617421.

The spelling of 856256103 in words is "eight hundred fifty-six million, two hundred fifty-six thousand, one hundred three".