22552512 has 56 divisors (see below), whose sum is σ = 62276736. Its totient is φ = 7189248.

The previous prime is 22552477. The next prime is 22552559. The reversal of 22552512 is 21525522.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1863 + ... + 6969.

Almost surely, 2^22552512 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22552512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31138368).

22552512 is an abundant number, since it is smaller than the sum of its proper divisors (39724224).

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

22552512 is a wasteful number, since it uses less digits than its factorization.

22552512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5145 (or 5135 counting only the distinct ones).

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

The square root of 22552512 is about 4748.9485151979. The cubic root of 22552512 is about 282.5302632888.

The spelling of 22552512 in words is "twenty-two million, five hundred fifty-two thousand, five hundred twelve".