42522791 has 8 divisors (see below), whose sum is σ = 44454624. Its totient is φ = 40597920.

The previous prime is 42522761. The next prime is 42522803. The reversal of 42522791 is 19722524.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42522791 - 2¹⁰ = 42521767 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42522761) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13805 + ... + 16601.

It is an arithmetic number, because the mean of its divisors is an integer number (5556828).

Almost surely, 2^42522791 is an apocalyptic number.

42522791 is a deficient number, since it is larger than the sum of its proper divisors (1931833).

42522791 is a wasteful number, since it uses less digits than its factorization.

42522791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3481.

The product of its digits is 10080, while the sum is 32.

The square root of 42522791 is about 6520.9501608278. The cubic root of 42522791 is about 349.0389717921.

The spelling of 42522791 in words is "forty-two million, five hundred twenty-two thousand, seven hundred ninety-one".