22172552 has 16 divisors (see below), whose sum is σ = 43381440. Its totient is φ = 10604176.

The previous prime is 22172531. The next prime is 22172561. The reversal of 22172552 is 25527122.

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, 60068 + ... + 60435.

It is an arithmetic number, because the mean of its divisors is an integer number (2711340).

Almost surely, 2^22172552 is an apocalyptic number.

It is an amenable number.

22172552 is a deficient number, since it is larger than the sum of its proper divisors (21208888).

22172552 is a wasteful number, since it uses less digits than its factorization.

22172552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120532 (or 120528 counting only the distinct ones).

The product of its digits is 2800, while the sum is 26.

The square root of 22172552 is about 4708.7739380862. The cubic root of 22172552 is about 280.9345980692.

Adding to 22172552 its reverse (25527122), we get a palindrome (47699674).

The spelling of 22172552 in words is "twenty-two million, one hundred seventy-two thousand, five hundred fifty-two".