42507512 has 16 divisors (see below), whose sum is σ = 80181360. Its totient is φ = 21125824.

The previous prime is 42507511. The next prime is 42507523. The reversal of 42507512 is 21570524.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42507511) 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, 14573 + ... + 17244.

It is an arithmetic number, because the mean of its divisors is an integer number (5011335).

Almost surely, 2^42507512 is an apocalyptic number.

It is an amenable number.

42507512 is a deficient number, since it is larger than the sum of its proper divisors (37673848).

42507512 is a wasteful number, since it uses less digits than its factorization.

42507512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31990 (or 31986 counting only the distinct ones).

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

The square root of 42507512 is about 6519.7785238457. The cubic root of 42507512 is about 348.9971620145.

The spelling of 42507512 in words is "forty-two million, five hundred seven thousand, five hundred twelve".