42515612 has 12 divisors (see below), whose sum is σ = 74506656. Its totient is φ = 21228000.

The previous prime is 42515609. The next prime is 42515639. The reversal of 42515612 is 21651524.

It is a zygodrome in base 3.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4073 + ... + 10080.

It is an arithmetic number, because the mean of its divisors is an integer number (6208888).

Almost surely, 2^42515612 is an apocalyptic number.

It is an amenable number.

42515612 is a deficient number, since it is larger than the sum of its proper divisors (31991044).

42515612 is a wasteful number, since it uses less digits than its factorization.

42515612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14908 (or 14906 counting only the distinct ones).

The product of its digits is 2400, while the sum is 26.

The square root of 42515612 is about 6520.3996810012. The cubic root of 42515612 is about 349.0193282728.

The spelling of 42515612 in words is "forty-two million, five hundred fifteen thousand, six hundred twelve".