42575815 has 8 divisors (see below), whose sum is σ = 51397920. Its totient is φ = 33856032.

The previous prime is 42575807. The next prime is 42575821. The reversal of 42575815 is 51857524.

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 42575815 - 2³ = 42575807 is a prime.

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, 24660 + ... + 26329.

It is an arithmetic number, because the mean of its divisors is an integer number (6424740).

Almost surely, 2^42575815 is an apocalyptic number.

42575815 is a deficient number, since it is larger than the sum of its proper divisors (8822105).

42575815 is a wasteful number, since it uses less digits than its factorization.

42575815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51161.

The product of its digits is 56000, while the sum is 37.

The square root of 42575815 is about 6525.0145593707. The cubic root of 42575815 is about 349.1839901433.

The spelling of 42575815 in words is "forty-two million, five hundred seventy-five thousand, eight hundred fifteen".