22642552 has 16 divisors (see below), whose sum is σ = 42553440. Its totient is φ = 11294976.

The previous prime is 22642507. The next prime is 22642559. The reversal of 22642552 is 25524622.

It is a super-2 number, since 2×22642552² = 1025370322145408, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22642552.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22642559) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 648 + ... + 6760.

It is an arithmetic number, because the mean of its divisors is an integer number (2659590).

Almost surely, 2^22642552 is an apocalyptic number.

It is an amenable number.

22642552 is a deficient number, since it is larger than the sum of its proper divisors (19910888).

22642552 is a wasteful number, since it uses less digits than its factorization.

22642552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6582 (or 6578 counting only the distinct ones).

The product of its digits is 9600, while the sum is 28.

The square root of 22642552 is about 4758.4190651938. The cubic root of 22642552 is about 282.9057609279.

It can be divided in two parts, 226 and 42552, that added together give a triangular number (42778 = T₂₉₂).

The spelling of 22642552 in words is "twenty-two million, six hundred forty-two thousand, five hundred fifty-two".