872415225 has 48 divisors (see below), whose sum is σ = 1748370240. Its totient is φ = 422985600.

The previous prime is 872415211. The next prime is 872415239. The reversal of 872415225 is 522514278.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (872415211) and next prime (872415239).

It is not a de Polignac number, because 872415225 - 2⁶ = 872415161 is a prime.

It is a super-2 number, since 2×872415225² = 1522216649623601250, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 872415225.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 51324 + ... + 66173.

It is an arithmetic number, because the mean of its divisors is an integer number (36424380).

Almost surely, 2^872415225 is an apocalyptic number.

It is an amenable number.

872415225 is an abundant number, since it is smaller than the sum of its proper divisors (875955015).

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

872415225 is a wasteful number, since it uses less digits than its factorization.

872415225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117527 (or 117516 counting only the distinct ones).

The product of its digits is 44800, while the sum is 36.

The square root of 872415225 is about 29536.6759301043. The cubic root of 872415225 is about 955.5228535896.

The spelling of 872415225 in words is "eight hundred seventy-two million, four hundred fifteen thousand, two hundred twenty-five".