22504153 has 4 divisors (see below), whose sum is σ = 25719040. Its totient is φ = 19289268.

The previous prime is 22504129. The next prime is 22504159. The reversal of 22504153 is 35140522.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 35140522 = 2 ⋅17570261.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22504153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22504159) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1607433 + ... + 1607446.

It is an arithmetic number, because the mean of its divisors is an integer number (6429760).

Almost surely, 2^22504153 is an apocalyptic number.

It is an amenable number.

22504153 is a deficient number, since it is larger than the sum of its proper divisors (3214887).

22504153 is an equidigital number, since it uses as much as digits as its factorization.

22504153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3214886.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 22504153 is about 4743.8542346914. The cubic root of 22504153 is about 282.3281770296.

Adding to 22504153 its reverse (35140522), we get a palindrome (57644675).

The spelling of 22504153 in words is "twenty-two million, five hundred four thousand, one hundred fifty-three".