815225932 has 24 divisors (see below), whose sum is σ = 1503356400. Its totient is φ = 385742016.

The previous prime is 815225911. The next prime is 815225953. The reversal of 815225932 is 239522518.

It is an interprime number because it is at equal distance from previous prime (815225911) and next prime (815225953).

It is a nialpdrome in base 13.

It is a junction number, because it is equal to n+sod(n) for n = 815225891 and 815225900.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71694 + ... + 82282.

It is an arithmetic number, because the mean of its divisors is an integer number (62639850).

Almost surely, 2^815225932 is an apocalyptic number.

It is an amenable number.

815225932 is a deficient number, since it is larger than the sum of its proper divisors (688130468).

815225932 is a wasteful number, since it uses less digits than its factorization.

815225932 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11625 (or 11623 counting only the distinct ones).

The product of its digits is 43200, while the sum is 37.

The square root of 815225932 is about 28552.1615994306. The cubic root of 815225932 is about 934.1701701504.

The spelling of 815225932 in words is "eight hundred fifteen million, two hundred twenty-five thousand, nine hundred thirty-two".