22504051 has 8 divisors (see below), whose sum is σ = 23544864. Its totient is φ = 21468480.

The previous prime is 22504049. The next prime is 22504061. The reversal of 22504051 is 15040522.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22504051 - 2¹ = 22504049 is a prime.

It is a super-2 number, since 2×22504051² = 1012864622821202, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22504061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9441 + ... + 11581.

It is an arithmetic number, because the mean of its divisors is an integer number (2943108).

Almost surely, 2^22504051 is an apocalyptic number.

22504051 is a deficient number, since it is larger than the sum of its proper divisors (1040813).

22504051 is a wasteful number, since it uses less digits than its factorization.

22504051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2621.

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 22504051 is about 4743.8434839274. The cubic root of 22504051 is about 282.3277504785.

Adding to 22504051 its reverse (15040522), we get a palindrome (37544573).

The spelling of 22504051 in words is "twenty-two million, five hundred four thousand, fifty-one".