22551522 has 32 divisors (see below), whose sum is σ = 52749312. Its totient is φ = 6292944.

The previous prime is 22551491. The next prime is 22551533. The reversal of 22551522 is 22515522.

It is a super-2 number, since 2×22551522² = 1017142289032968, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22551492 and 22551501.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4438 + ... + 8049.

It is an arithmetic number, because the mean of its divisors is an integer number (1648416).

Almost surely, 2^22551522 is an apocalyptic number.

22551522 is an abundant number, since it is smaller than the sum of its proper divisors (30197790).

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

22551522 is a wasteful number, since it uses less digits than its factorization.

22551522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12542.

The product of its digits is 2000, while the sum is 24.

The square root of 22551522 is about 4748.8442804539. The cubic root of 22551522 is about 282.5261290996.

The spelling of 22551522 in words is "twenty-two million, five hundred fifty-one thousand, five hundred twenty-two".