815056395 has 16 divisors (see below), whose sum is σ = 1372727040. Its totient is φ = 411817824.

The previous prime is 815056391. The next prime is 815056477. The reversal of 815056395 is 593650518.

It is not a de Polignac number, because 815056395 - 2² = 815056391 is a prime.

It is not an unprimeable number, because it can be changed into a prime (815056391) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1429639 + ... + 1430208.

It is an arithmetic number, because the mean of its divisors is an integer number (85795440).

Almost surely, 2^815056395 is an apocalyptic number.

815056395 is a deficient number, since it is larger than the sum of its proper divisors (557670645).

815056395 is a wasteful number, since it uses less digits than its factorization.

815056395 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2859874.

The product of its (nonzero) digits is 162000, while the sum is 42.

The square root of 815056395 is about 28549.1925454994. The cubic root of 815056395 is about 934.1054079857.

The spelling of 815056395 in words is "eight hundred fifteen million, fifty-six thousand, three hundred ninety-five".