22478552 has 32 divisors (see below), whose sum is σ = 43124400. Its totient is φ = 10982400.

The previous prime is 22478543. The next prime is 22478563. The reversal of 22478552 is 25587422.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93152 + ... + 93392.

Almost surely, 2^22478552 is an apocalyptic number.

It is an amenable number.

22478552 is a deficient number, since it is larger than the sum of its proper divisors (20645848).

22478552 is a wasteful number, since it uses less digits than its factorization.

22478552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 467 (or 463 counting only the distinct ones).

The product of its digits is 44800, while the sum is 35.

The square root of 22478552 is about 4741.1551335091. The cubic root of 22478552 is about 282.2210764094.

The spelling of 22478552 in words is "twenty-two million, four hundred seventy-eight thousand, five hundred fifty-two".