22257553 has 4 divisors (see below), whose sum is σ = 22369600. Its totient is φ = 22145508.

The previous prime is 22257527. The next prime is 22257559. The reversal of 22257553 is 35575222.

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: 35575222 = 2 ⋅17787611.

It is a cyclic number.

It is not a de Polignac number, because 22257553 - 2²¹ = 20160401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22257559) 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, 55725 + ... + 56122.

It is an arithmetic number, because the mean of its divisors is an integer number (5592400).

Almost surely, 2^22257553 is an apocalyptic number.

It is an amenable number.

22257553 is a deficient number, since it is larger than the sum of its proper divisors (112047).

22257553 is a wasteful number, since it uses less digits than its factorization.

22257553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112046.

The product of its digits is 21000, while the sum is 31.

The square root of 22257553 is about 4717.7911144942. The cubic root of 22257553 is about 281.2931385353.

It can be divided in two parts, 222 and 57553, that added together give a palindrome (57775).

The spelling of 22257553 in words is "twenty-two million, two hundred fifty-seven thousand, five hundred fifty-three".