42423625 has 8 divisors (see below), whose sum is σ = 52944840. Its totient is φ = 33938800.

The previous prime is 42423617. The next prime is 42423631. The reversal of 42423625 is 52632424.

It can be written as a sum of positive squares in 4 ways, for example, as 186624 + 42237001 = 432^2 + 6499^2 .

It is not a de Polignac number, because 42423625 - 2³ = 42423617 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42423593 and 42423602.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 169570 + ... + 169819.

It is an arithmetic number, because the mean of its divisors is an integer number (6618105).

Almost surely, 2^42423625 is an apocalyptic number.

It is an amenable number.

42423625 is a deficient number, since it is larger than the sum of its proper divisors (10521215).

42423625 is an equidigital number, since it uses as much as digits as its factorization.

42423625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339404 (or 339394 counting only the distinct ones).

The product of its digits is 11520, while the sum is 28.

The square root of 42423625 is about 6513.3420760774. The cubic root of 42423625 is about 348.7674331714.

The spelling of 42423625 in words is "forty-two million, four hundred twenty-three thousand, six hundred twenty-five".