42512665 has 32 divisors (see below), whose sum is σ = 59028480. Its totient is φ = 29113344.

The previous prime is 42512651. The next prime is 42512677. The reversal of 42512665 is 56621524.

It is not a de Polignac number, because 42512665 - 2⁷ = 42512537 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 87052 + ... + 87538.

It is an arithmetic number, because the mean of its divisors is an integer number (1844640).

Almost surely, 2^42512665 is an apocalyptic number.

It is an amenable number.

42512665 is a deficient number, since it is larger than the sum of its proper divisors (16515815).

42512665 is a wasteful number, since it uses less digits than its factorization.

42512665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 601.

The product of its digits is 14400, while the sum is 31.

The square root of 42512665 is about 6520.1736940054. The cubic root of 42512665 is about 349.0112639118.

The spelling of 42512665 in words is "forty-two million, five hundred twelve thousand, six hundred sixty-five".