42625530 has 24 divisors (see below), whose sum is σ = 110826612. Its totient is φ = 11366784.

The previous prime is 42625529. The next prime is 42625543. The reversal of 42625530 is 3552624.

42625530 is a `hidden beast` number, since 4 + 2 + 625 + 5 + 30 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 41873841 + 751689 = 6471^2 + 867^2 .

It is a junction number, because it is equal to n+sod(n) for n = 42625494 and 42625503.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 236719 + ... + 236898.

Almost surely, 2^42625530 is an apocalyptic number.

42625530 is an abundant number, since it is smaller than the sum of its proper divisors (68201082).

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

42625530 is a wasteful number, since it uses less digits than its factorization.

42625530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 473630 (or 473627 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 42625530 is about 6528.8230179719. The cubic root of 42625530 is about 349.3198491953.

The spelling of 42625530 in words is "forty-two million, six hundred twenty-five thousand, five hundred thirty".