52428222 has 112 divisors (see below), whose sum is σ = 147318912. Its totient is φ = 13588560.

The previous prime is 52428197. The next prime is 52428227. The reversal of 52428222 is 22282425.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52428227) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 112033 + ... + 112499.

Almost surely, 2^52428222 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52428222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73659456).

52428222 is an abundant number, since it is smaller than the sum of its proper divisors (94890690).

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

52428222 is a wasteful number, since it uses less digits than its factorization.

52428222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505 (or 490 counting only the distinct ones).

The product of its digits is 5120, while the sum is 27.

The square root of 52428222 is about 7240.7335263770. The cubic root of 52428222 is about 374.2728950937.

It can be divided in two parts, 52428 and 222, that added together give a triangular number (52650 = T₃₂₄).

The spelling of 52428222 in words is "fifty-two million, four hundred twenty-eight thousand, two hundred twenty-two".