42512656 has 20 divisors (see below), whose sum is σ = 85026304. Its totient is φ = 20570400.

The previous prime is 42512651. The next prime is 42512677. The reversal of 42512656 is 65621524.

42512656 is an admirable number.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is not an unprimeable number, because it can be changed into a prime (42512651) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42360 + ... + 43351.

Almost surely, 2^42512656 is an apocalyptic number.

It is an amenable number.

42512656 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42512656 is a wasteful number, since it uses less digits than its factorization.

42512656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85750 (or 85744 counting only the distinct ones).

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

The square root of 42512656 is about 6520.1730038397. The cubic root of 42512656 is about 349.0112392830.

The spelling of 42512656 in words is "forty-two million, five hundred twelve thousand, six hundred fifty-six".