22512006520 has 32 divisors (see below), whose sum is σ = 51607717920. Its totient is φ = 8834899840.

The previous prime is 22512006511. The next prime is 22512006521. The reversal of 22512006520 is 2560021522.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22512006521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5307316 + ... + 5311555.

It is an arithmetic number, because the mean of its divisors is an integer number (1612741185).

Almost surely, 2^22512006520 is an apocalyptic number.

22512006520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22512006520 is an abundant number, since it is smaller than the sum of its proper divisors (29095711400).

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

22512006520 is a wasteful number, since it uses less digits than its factorization.

22512006520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10618935 (or 10618931 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The spelling of 22512006520 in words is "twenty-two billion, five hundred twelve million, six thousand, five hundred twenty".