22555545452 has 12 divisors (see below), whose sum is σ = 43060586856. Its totient is φ = 10252520640.

The previous prime is 22555545433. The next prime is 22555545473. The reversal of 22555545452 is 25454555522.

It is a Harshad number since it is a multiple of its sum of digits (44), and also a Moran number because the ratio is a prime number: 512626033 = 22555545452 / (2 + 2 + 5 + 5 + 5 + 5 + 4 + 5 + 4 + 5 + 2).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 256312973 + ... + 256313060.

It is an arithmetic number, because the mean of its divisors is an integer number (3588382238).

Almost surely, 2^22555545452 is an apocalyptic number.

22555545452 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

22555545452 is a deficient number, since it is larger than the sum of its proper divisors (20505041404).

22555545452 is a wasteful number, since it uses less digits than its factorization.

22555545452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 512626048 (or 512626046 counting only the distinct ones).

The product of its digits is 2000000, while the sum is 44.

The spelling of 22555545452 in words is "twenty-two billion, five hundred fifty-five million, five hundred forty-five thousand, four hundred fifty-two".