22515454252 has 24 divisors (see below), whose sum is σ = 42094888640. Its totient is φ = 10506030480.

The previous prime is 22515454231. The next prime is 22515454277. The reversal of 22515454252 is 25245451522.

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, 2205774 + ... + 2215957.

Almost surely, 2^22515454252 is an apocalyptic number.

It is an amenable number.

22515454252 is a deficient number, since it is larger than the sum of its proper divisors (19579434388).

22515454252 is a wasteful number, since it uses less digits than its factorization.

22515454252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4421821 (or 4421819 counting only the distinct ones).

The product of its digits is 160000, while the sum is 37.

The spelling of 22515454252 in words is "twenty-two billion, five hundred fifteen million, four hundred fifty-four thousand, two hundred fifty-two".