22554505625 has 20 divisors (see below), whose sum is σ = 29842013124. Its totient is φ = 16982208000.

The previous prime is 22554505601. The next prime is 22554505627. The reversal of 22554505625 is 52650545522.

It can be written as a sum of positive squares in 10 ways, for example, as 18904050064 + 3650455561 = 137492^2 + 60419^2 .

It is not a de Polignac number, because 22554505625 - 2¹⁶ = 22554440089 is a prime.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22554505627) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1050764 + ... + 1072013.

Almost surely, 2^22554505625 is an apocalyptic number.

22554505625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22554505625 is a deficient number, since it is larger than the sum of its proper divisors (7287507499).

22554505625 is an equidigital number, since it uses as much as digits as its factorization.

22554505625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2122814 (or 2122799 counting only the distinct ones).

The product of its (nonzero) digits is 600000, while the sum is 41.

The spelling of 22554505625 in words is "twenty-two billion, five hundred fifty-four million, five hundred five thousand, six hundred twenty-five".