22542542 has 12 divisors (see below), whose sum is σ = 37167648. Its totient is φ = 10246500.

The previous prime is 22542539. The next prime is 22542547. The reversal of 22542542 is 24524522.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22542547) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 46334 + ... + 46817.

It is an arithmetic number, because the mean of its divisors is an integer number (3097304).

Almost surely, 2^22542542 is an apocalyptic number.

22542542 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

22542542 is a deficient number, since it is larger than the sum of its proper divisors (14625106).

22542542 is a wasteful number, since it uses less digits than its factorization.

22542542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93175 (or 93164 counting only the distinct ones).

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

The square root of 22542542 is about 4747.8986931062. The cubic root of 22542542 is about 282.4886235531.

The spelling of 22542542 in words is "twenty-two million, five hundred forty-two thousand, five hundred forty-two".