42522542 has 16 divisors (see below), whose sum is σ = 67949280. Its totient is φ = 19888128.

The previous prime is 42522533. The next prime is 42522581. The reversal of 42522542 is 24522524.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1934 + ... + 9422.

It is an arithmetic number, because the mean of its divisors is an integer number (4246830).

Almost surely, 2^42522542 is an apocalyptic number.

42522542 is a deficient number, since it is larger than the sum of its proper divisors (25426738).

42522542 is a wasteful number, since it uses less digits than its factorization.

42522542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7675.

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

The square root of 42522542 is about 6520.9310684901. The cubic root of 42522542 is about 349.0382905036.

The spelling of 42522542 in words is "forty-two million, five hundred twenty-two thousand, five hundred forty-two".