22513440520 has 32 divisors (see below), whose sum is σ = 52857645120. Its totient is φ = 8613837760.

The previous prime is 22513440479. The next prime is 22513440529. The reversal of 22513440520 is 2504431522.

It is not an unprimeable number, because it can be changed into a prime (22513440529) 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, 12234646 + ... + 12236485.

It is an arithmetic number, because the mean of its divisors is an integer number (1651801410).

Almost surely, 2^22513440520 is an apocalyptic number.

22513440520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22513440520 is an abundant number, since it is smaller than the sum of its proper divisors (30344204600).

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

22513440520 is a wasteful number, since it uses less digits than its factorization.

22513440520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24471165 (or 24471161 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 28.

The spelling of 22513440520 in words is "twenty-two billion, five hundred thirteen million, four hundred forty thousand, five hundred twenty".