22715521025 has 12 divisors (see below), whose sum is σ = 28185224304. Its totient is φ = 18160818000.

The previous prime is 22715521001. The next prime is 22715521043. The reversal of 22715521025 is 52012551722.

It is not a de Polignac number, because 22715521025 - 2¹⁶ = 22715455489 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 22715520982 and 22715521000.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 249911 + ... + 328460.

It is an arithmetic number, because the mean of its divisors is an integer number (2348768692).

Almost surely, 2^22715521025 is an apocalyptic number.

22715521025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22715521025 is a deficient number, since it is larger than the sum of its proper divisors (5469703279).

22715521025 is a wasteful number, since it uses less digits than its factorization.

22715521025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 579952 (or 579947 counting only the distinct ones).

The product of its (nonzero) digits is 14000, while the sum is 32.

The spelling of 22715521025 in words is "twenty-two billion, seven hundred fifteen million, five hundred twenty-one thousand, twenty-five".