42575931 has 12 divisors (see below), whose sum is σ = 62365680. Its totient is φ = 27983760.

The previous prime is 42575899. The next prime is 42575933. The reversal of 42575931 is 13957524.

It is not a de Polignac number, because 42575931 - 2⁵ = 42575899 is a prime.

It is a super-2 number, since 2×42575931² = 3625419801033522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (42575933) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32676 + ... + 33953.

It is an arithmetic number, because the mean of its divisors is an integer number (5197140).

Almost surely, 2^42575931 is an apocalyptic number.

42575931 is a deficient number, since it is larger than the sum of its proper divisors (19789749).

42575931 is a wasteful number, since it uses less digits than its factorization.

42575931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66706 (or 66703 counting only the distinct ones).

The product of its digits is 37800, while the sum is 36.

The square root of 42575931 is about 6525.0234482337. The cubic root of 42575931 is about 349.1843072663.

The spelling of 42575931 in words is "forty-two million, five hundred seventy-five thousand, nine hundred thirty-one".