22502475 has 96 divisors (see below), whose sum is σ = 45800640. Its totient is φ = 10782720.

The previous prime is 22502471. The next prime is 22502477. The reversal of 22502475 is 57420522.

It is not a de Polignac number, because 22502475 - 2² = 22502471 is a prime.

It is a super-2 number, since 2×22502475² = 1012722762251250, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

22502475 is a modest number, since divided by 2475 gives 2250 as remainder.

It is not an unprimeable number, because it can be changed into a prime (22502471) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 424549 + ... + 424601.

It is an arithmetic number, because the mean of its divisors is an integer number (477090).

Almost surely, 2^22502475 is an apocalyptic number.

22502475 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

22502475 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

22502475 is a wasteful number, since it uses less digits than its factorization.

22502475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126 (or 115 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 27.

The square root of 22502475 is about 4743.6773709855. The cubic root of 22502475 is about 282.3211596811.

Adding to 22502475 its reverse (57420522), we get a palindrome (79922997).

The spelling of 22502475 in words is "twenty-two million, five hundred two thousand, four hundred seventy-five".