815225954 has 16 divisors (see below), whose sum is σ = 1240378368. Its totient is φ = 401807952.

The previous prime is 815225953. The next prime is 815225977. The reversal of 815225954 is 459522518.

It is not an unprimeable number, because it can be changed into a prime (815225953) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29657 + ... + 50099.

It is an arithmetic number, because the mean of its divisors is an integer number (77523648).

Almost surely, 2^815225954 is an apocalyptic number.

815225954 is a deficient number, since it is larger than the sum of its proper divisors (425152414).

815225954 is a wasteful number, since it uses less digits than its factorization.

815225954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20729.

The product of its digits is 144000, while the sum is 41.

The square root of 815225954 is about 28552.1619846904. The cubic root of 815225954 is about 934.1701785537.

The spelling of 815225954 in words is "eight hundred fifteen million, two hundred twenty-five thousand, nine hundred fifty-four".