22052052 has 72 divisors (see below), whose sum is σ = 61326720. Its totient is φ = 6625920.

The previous prime is 22052047. The next prime is 22052057. The reversal of 22052052 is 25025022.

It is an interprime number because it is at equal distance from previous prime (22052047) and next prime (22052057).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22052057) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 92149 + ... + 92387.

It is an arithmetic number, because the mean of its divisors is an integer number (851760).

Almost surely, 2^22052052 is an apocalyptic number.

22052052 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22052052, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30663360).

22052052 is an abundant number, since it is smaller than the sum of its proper divisors (39274668).

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

22052052 is a wasteful number, since it uses less digits than its factorization.

22052052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 493 (or 488 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 18.

The square root of 22052052 is about 4695.9612434517. The cubic root of 22052052 is about 280.4247465107.

Adding to 22052052 its reverse (25025022), we get a palindrome (47077074).

The spelling of 22052052 in words is "twenty-two million, fifty-two thousand, fifty-two".