42860425 has 6 divisors (see below), whose sum is σ = 53146958. Its totient is φ = 34288320.

The previous prime is 42860413. The next prime is 42860429. The reversal of 42860425 is 52406824.

It can be written as a sum of positive squares in 3 ways, for example, as 1951609 + 40908816 = 1397^2 + 6396^2 .

It is not a de Polignac number, because 42860425 - 2²⁵ = 9305993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42860429) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 857184 + ... + 857233.

Almost surely, 2^42860425 is an apocalyptic number.

It is an amenable number.

42860425 is a deficient number, since it is larger than the sum of its proper divisors (10286533).

42860425 is a wasteful number, since it uses less digits than its factorization.

42860425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1714427 (or 1714422 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 31.

The square root of 42860425 is about 6546.7873800819. The cubic root of 42860425 is about 349.9603356412.

The spelling of 42860425 in words is "forty-two million, eight hundred sixty thousand, four hundred twenty-five".