22531020537 has 16 divisors (see below), whose sum is σ = 30934754240. Its totient is φ = 14576127552.

The previous prime is 22531020529. The next prime is 22531020539. The reversal of 22531020537 is 73502013522.

It is a happy number.

It is not a de Polignac number, because 22531020537 - 2³ = 22531020529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22531020539) 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, 225718 + ... + 309855.

It is an arithmetic number, because the mean of its divisors is an integer number (1933422140).

Almost surely, 2^22531020537 is an apocalyptic number.

It is an amenable number.

22531020537 is a deficient number, since it is larger than the sum of its proper divisors (8403733703).

22531020537 is a wasteful number, since it uses less digits than its factorization.

22531020537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 535992.

The product of its (nonzero) digits is 12600, while the sum is 30.

The spelling of 22531020537 in words is "twenty-two billion, five hundred thirty-one million, twenty thousand, five hundred thirty-seven".