225307076642 has 18 divisors (see below), whose sum is σ = 353317633137. Its totient is φ = 107748174336.

The previous prime is 225307076627. The next prime is 225307076653. The reversal of 225307076642 is 246670703522.

It can be written as a sum of positive squares in 2 ways, for example, as 175091196721 + 50215879921 = 418439^2 + 224089^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=335639.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 225307076593 and 225307076602.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 15432098 + ... + 15446690.

Almost surely, 2^225307076642 is an apocalyptic number.

225307076642 is a deficient number, since it is larger than the sum of its proper divisors (128010556495).

225307076642 is an frugal number, since it uses more digits than its factorization.

225307076642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29234 (or 14618 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 44.

The spelling of 225307076642 in words is "two hundred twenty-five billion, three hundred seven million, seventy-six thousand, six hundred forty-two".