22520550 has 48 divisors (see below), whose sum is σ = 60152400. Its totient is φ = 5543040.

The previous prime is 22520549. The next prime is 22520557. The reversal of 22520550 is 5502522.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22520557) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3825 + ... + 7724.

It is an arithmetic number, because the mean of its divisors is an integer number (1253175).

Almost surely, 2^22520550 is an apocalyptic number.

22520550 is an abundant number, since it is smaller than the sum of its proper divisors (37631850).

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

22520550 is a wasteful number, since it uses less digits than its factorization.

22520550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11577 (or 11572 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 21.

The square root of 22520550 is about 4745.5821560689. The cubic root of 22520550 is about 282.3967304685.

The spelling of 22520550 in words is "twenty-two million, five hundred twenty thousand, five hundred fifty".