22772523 has 4 divisors (see below), whose sum is σ = 30363368. Its totient is φ = 15181680.

The previous prime is 22772483. The next prime is 22772527. The reversal of 22772523 is 32527722.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 22772523 - 2¹⁰ = 22771499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22772527) 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, 3795418 + ... + 3795423.

It is an arithmetic number, because the mean of its divisors is an integer number (7590842).

Almost surely, 2^22772523 is an apocalyptic number.

22772523 is a deficient number, since it is larger than the sum of its proper divisors (7590845).

22772523 is an equidigital number, since it uses as much as digits as its factorization.

22772523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7590844.

The product of its digits is 11760, while the sum is 30.

The square root of 22772523 is about 4772.0564749382. The cubic root of 22772523 is about 283.4460329825.

The spelling of 22772523 in words is "twenty-two million, seven hundred seventy-two thousand, five hundred twenty-three".