22501556253 has 48 divisors (see below), whose sum is σ = 36599472000. Its totient is φ = 13201626240.

The previous prime is 22501556239. The next prime is 22501556263. The reversal of 22501556253 is 35265510522.

22501556253 is a `hidden beast` number, since 2 + 2 + 50 + 1 + 556 + 2 + 53 = 666.

It is not a de Polignac number, because 22501556253 - 2¹⁴ = 22501539869 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22501556263) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 713503 + ... + 744371.

It is an arithmetic number, because the mean of its divisors is an integer number (762489000).

Almost surely, 2^22501556253 is an apocalyptic number.

It is an amenable number.

22501556253 is a deficient number, since it is larger than the sum of its proper divisors (14097915747).

22501556253 is a wasteful number, since it uses less digits than its factorization.

22501556253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31122 (or 31119 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 36.

The spelling of 22501556253 in words is "twenty-two billion, five hundred one million, five hundred fifty-six thousand, two hundred fifty-three".