22553256477021 has 16 divisors (see below), whose sum is σ = 30211641086208. Its totient is φ = 14965303464000.

The previous prime is 22553256476977. The next prime is 22553256477043. The reversal of 22553256477021 is 12077465235522.

It is not a de Polignac number, because 22553256477021 - 2¹⁵ = 22553256444253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22553256477091) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13638805 + ... + 15202746.

It is an arithmetic number, because the mean of its divisors is an integer number (1888227567888).

Almost surely, 2^{22553256477021} is an apocalyptic number.

It is an amenable number.

22553256477021 is a deficient number, since it is larger than the sum of its proper divisors (7658384609187).

22553256477021 is a wasteful number, since it uses less digits than its factorization.

22553256477021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28842772.

The product of its (nonzero) digits is 7056000, while the sum is 51.

The spelling of 22553256477021 in words is "twenty-two trillion, five hundred fifty-three billion, two hundred fifty-six million, four hundred seventy-seven thousand, twenty-one".