22515498 has 24 divisors (see below), whose sum is σ = 49140000. Its totient is φ = 7450344.

The previous prime is 22515461. The next prime is 22515503. The reversal of 22515498 is 89451522.

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, 1998 + ... + 7001.

It is an arithmetic number, because the mean of its divisors is an integer number (2047500).

Almost surely, 2^22515498 is an apocalyptic number.

22515498 is an abundant number, since it is smaller than the sum of its proper divisors (26624502).

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

22515498 is a wasteful number, since it uses less digits than its factorization.

22515498 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9146 (or 9143 counting only the distinct ones).

The product of its digits is 28800, while the sum is 36.

The square root of 22515498 is about 4745.0498416771. The cubic root of 22515498 is about 282.3756123493.

The spelling of 22515498 in words is "twenty-two million, five hundred fifteen thousand, four hundred ninety-eight".