52220912 has 20 divisors (see below), whose sum is σ = 103913736. Its totient is φ = 25404480.

The previous prime is 52220899. The next prime is 52220947. The reversal of 52220912 is 21902225.

It is a super-2 number, since 2×52220912² = 5454047300223488, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43514 + ... + 44697.

Almost surely, 2^52220912 is an apocalyptic number.

It is an amenable number.

52220912 is a deficient number, since it is larger than the sum of its proper divisors (51692824).

52220912 is a wasteful number, since it uses less digits than its factorization.

52220912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88256 (or 88250 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 52220912 is about 7226.4038082576. The cubic root of 52220912 is about 373.7789308075.

The spelling of 52220912 in words is "fifty-two million, two hundred twenty thousand, nine hundred twelve".