42456535225 has 24 divisors (see below), whose sum is σ = 58228139480. Its totient is φ = 30505144320.

The previous prime is 42456535211. The next prime is 42456535279. The reversal of 42456535225 is 52253565424.

42456535225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 12 ways, for example, as 16851414969 + 25605120256 = 129813^2 + 160016^2 .

It is not a de Polignac number, because 42456535225 - 2⁹ = 42456534713 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1753320 + ... + 1777369.

Almost surely, 2^42456535225 is an apocalyptic number.

It is an amenable number.

42456535225 is a deficient number, since it is larger than the sum of its proper divisors (15771604255).

42456535225 is a wasteful number, since it uses less digits than its factorization.

42456535225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3530749 (or 3530744 counting only the distinct ones).

The product of its digits is 1440000, while the sum is 43.

The spelling of 42456535225 in words is "forty-two billion, four hundred fifty-six million, five hundred thirty-five thousand, two hundred twenty-five".