22530537 has 12 divisors (see below), whose sum is σ = 32623344. Its totient is φ = 14983800.

The previous prime is 22530527. The next prime is 22530539. The reversal of 22530537 is 73503522.

It is not a de Polignac number, because 22530537 - 2¹¹ = 22528489 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22530537.

It is not an unprimeable number, because it can be changed into a prime (22530539) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1162 + ... + 6812.

It is an arithmetic number, because the mean of its divisors is an integer number (2718612).

Almost surely, 2^22530537 is an apocalyptic number.

It is an amenable number.

22530537 is a deficient number, since it is larger than the sum of its proper divisors (10092807).

22530537 is a wasteful number, since it uses less digits than its factorization.

22530537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6100 (or 6097 counting only the distinct ones).

The product of its (nonzero) digits is 6300, while the sum is 27.

The square root of 22530537 is about 4746.6342812566. The cubic root of 22530537 is about 282.4384683383.

The spelling of 22530537 in words is "twenty-two million, five hundred thirty thousand, five hundred thirty-seven".