15222852 has 18 divisors (see below), whose sum is σ = 38480078. Its totient is φ = 5074272.

The previous prime is 15222839. The next prime is 15222887. The reversal of 15222852 is 25822251.

It can be written as a sum of positive squares in only one way, i.e., 12068676 + 3154176 = 3474^2 + 1776^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 211393 + ... + 211464.

Almost surely, 2^15222852 is an apocalyptic number.

15222852 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

15222852 is an abundant number, since it is smaller than the sum of its proper divisors (23257226).

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

15222852 is a wasteful number, since it uses less digits than its factorization.

15222852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422867 (or 422862 counting only the distinct ones).

The product of its digits is 3200, while the sum is 27.

The square root of 15222852 is about 3901.6473443919. The cubic root of 15222852 is about 247.8365424791.

The spelling of 15222852 in words is "fifteen million, two hundred twenty-two thousand, eight hundred fifty-two".