52222128 has 40 divisors (see below), whose sum is σ = 154180608. Its totient is φ = 14920512.

The previous prime is 52222117. The next prime is 52222129. The reversal of 52222128 is 82122225.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 52222098 and 52222107.

It is not an unprimeable number, because it can be changed into a prime (52222129) 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, 77376 + ... + 78047.

Almost surely, 2^52222128 is an apocalyptic number.

It is an amenable number.

52222128 is an abundant number, since it is smaller than the sum of its proper divisors (101958480).

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

52222128 is a wasteful number, since it uses less digits than its factorization.

52222128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155441 (or 155435 counting only the distinct ones).

The product of its digits is 1280, while the sum is 24.

The square root of 52222128 is about 7226.4879436695. The cubic root of 52222128 is about 373.7818320185.

The spelling of 52222128 in words is "fifty-two million, two hundred twenty-two thousand, one hundred twenty-eight".