42670625 has 20 divisors (see below), whose sum is σ = 54170160. Its totient is φ = 33594000.

The previous prime is 42670619. The next prime is 42670651. The reversal of 42670625 is 52607624.

It is not a de Polignac number, because 42670625 - 2⁴ = 42670609 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42670591 and 42670600.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 41366 + ... + 42384.

It is an arithmetic number, because the mean of its divisors is an integer number (2708508).

Almost surely, 2^42670625 is an apocalyptic number.

It is an amenable number.

42670625 is a deficient number, since it is larger than the sum of its proper divisors (11499535).

42670625 is an equidigital number, since it uses as much as digits as its factorization.

42670625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1106 (or 1091 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 42670625 is about 6532.2756371727. The cubic root of 42670625 is about 349.4429915687.

The spelling of 42670625 in words is "forty-two million, six hundred seventy thousand, six hundred twenty-five".