22712554 has 4 divisors (see below), whose sum is σ = 34068834. Its totient is φ = 11356276.

The previous prime is 22712551. The next prime is 22712603. The reversal of 22712554 is 45521722.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 45521722 = 2 ⋅22760861.

It can be written as a sum of positive squares in only one way, i.e., 16184529 + 6528025 = 4023^2 + 2555^2 .

It is not an unprimeable number, because it can be changed into a prime (22712551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5678137 + ... + 5678140.

Almost surely, 2^22712554 is an apocalyptic number.

22712554 is a deficient number, since it is larger than the sum of its proper divisors (11356280).

22712554 is a wasteful number, since it uses less digits than its factorization.

22712554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11356279.

The product of its digits is 5600, while the sum is 28.

The square root of 22712554 is about 4765.7689830708. The cubic root of 22712554 is about 283.1970060038.

The spelling of 22712554 in words is "twenty-two million, seven hundred twelve thousand, five hundred fifty-four".