22528550 has 24 divisors (see below), whose sum is σ = 45713592. Its totient is φ = 8192000.

The previous prime is 22528543. The next prime is 22528573. The reversal of 22528550 is 5582522.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a nialpdrome in base 12.

It is a congruent number.

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, 19931 + ... + 21030.

It is an arithmetic number, because the mean of its divisors is an integer number (1904733).

Almost surely, 2^22528550 is an apocalyptic number.

22528550 is an abundant number, since it is smaller than the sum of its proper divisors (23185042).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22528550 is a wasteful number, since it uses less digits than its factorization.

22528550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40984 (or 40979 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 29.

The square root of 22528550 is about 4746.4249704383. The cubic root of 22528550 is about 282.4301652112.

It can be divided in two parts, 22528 and 550, that multiplied together give a square (12390400 = 3520²).

The spelling of 22528550 in words is "twenty-two million, five hundred twenty-eight thousand, five hundred fifty".