42511568 has 20 divisors (see below), whose sum is σ = 89854368. Its totient is φ = 19323360.

The previous prime is 42511537. The next prime is 42511589. The reversal of 42511568 is 86511524.

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, 120596 + ... + 120947.

Almost surely, 2^42511568 is an apocalyptic number.

It is an amenable number.

42511568 is an abundant number, since it is smaller than the sum of its proper divisors (47342800).

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

42511568 is a wasteful number, since it uses less digits than its factorization.

42511568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241562 (or 241556 counting only the distinct ones).

The product of its digits is 9600, while the sum is 32.

The square root of 42511568 is about 6520.0895699369. The cubic root of 42511568 is about 349.0082619150.

The spelling of 42511568 in words is "forty-two million, five hundred eleven thousand, five hundred sixty-eight".