42572015 has 16 divisors (see below), whose sum is σ = 52695360. Its totient is φ = 32993280.

The previous prime is 42572009. The next prime is 42572017. The reversal of 42572015 is 51027524.

It is not a de Polignac number, because 42572015 - 2⁸ = 42571759 is a prime.

It is a super-2 number, since 2×42572015² = 3624752922320450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42572017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66095 + ... + 66735.

It is an arithmetic number, because the mean of its divisors is an integer number (3293460).

Almost surely, 2^42572015 is an apocalyptic number.

42572015 is a deficient number, since it is larger than the sum of its proper divisors (10123345).

42572015 is a wasteful number, since it uses less digits than its factorization.

42572015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1042.

The product of its (nonzero) digits is 2800, while the sum is 26.

The square root of 42572015 is about 6524.7233657834. The cubic root of 42572015 is about 349.1736013139.

Adding to 42572015 its reverse (51027524), we get a palindrome (93599539).

The spelling of 42572015 in words is "forty-two million, five hundred seventy-two thousand, fifteen".