22520250 has 48 divisors (see below), whose sum is σ = 60900840. Its totient is φ = 6004800.

The previous prime is 22520249. The next prime is 22520297. The reversal of 22520250 is 5202522.

It can be written as a sum of positive squares in 4 ways, for example, as 14584761 + 7935489 = 3819^2 + 2817^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2755 + ... + 7254.

Almost surely, 2^22520250 is an apocalyptic number.

22520250 is an abundant number, since it is smaller than the sum of its proper divisors (38380590).

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

22520250 is a wasteful number, since it uses less digits than its factorization.

22520250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10032 (or 10019 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 18.

The square root of 22520250 is about 4745.5505476183. The cubic root of 22520250 is about 282.3954765116.

Adding to 22520250 its reverse (5202522), we get a palindrome (27722772).

It can be divided in two parts, 2 and 2520250, that added together give a palindrome (2520252).

The spelling of 22520250 in words is "twenty-two million, five hundred twenty thousand, two hundred fifty".