22356608825 has 6 divisors (see below), whose sum is σ = 27722194974. Its totient is φ = 17885287040.

The previous prime is 22356608819. The next prime is 22356608849. The reversal of 22356608825 is 52880665322.

It can be written as a sum of positive squares in 3 ways, for example, as 446392384 + 21910216441 = 21128^2 + 148021^2 .

It is not a de Polignac number, because 22356608825 - 2⁴ = 22356608809 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22356608825.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 447132152 + ... + 447132201.

It is an arithmetic number, because the mean of its divisors is an integer number (4620365829).

Almost surely, 2^22356608825 is an apocalyptic number.

22356608825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22356608825 is a deficient number, since it is larger than the sum of its proper divisors (5365586149).

22356608825 is an equidigital number, since it uses as much as digits as its factorization.

22356608825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 894264363 (or 894264358 counting only the distinct ones).

The product of its (nonzero) digits is 1382400, while the sum is 47.

The spelling of 22356608825 in words is "twenty-two billion, three hundred fifty-six million, six hundred eight thousand, eight hundred twenty-five".