22524542 has 4 divisors (see below), whose sum is σ = 33786816. Its totient is φ = 11262270.

The previous prime is 22524511. The next prime is 22524547. The reversal of 22524542 is 24542522.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24542522 = 2 ⋅12271261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22524547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5631134 + ... + 5631137.

It is an arithmetic number, because the mean of its divisors is an integer number (8446704).

Almost surely, 2^22524542 is an apocalyptic number.

22524542 is a deficient number, since it is larger than the sum of its proper divisors (11262274).

22524542 is a wasteful number, since it uses less digits than its factorization.

22524542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11262273.

The product of its digits is 6400, while the sum is 26.

The square root of 22524542 is about 4746.0027391480. The cubic root of 22524542 is about 282.4134153947.

Subtracting from 22524542 its sum of digits (26), we obtain a square (22524516 = 4746²).

The spelling of 22524542 in words is "twenty-two million, five hundred twenty-four thousand, five hundred forty-two".