31463545225 has 12 divisors (see below), whose sum is σ = 44588338624. Its totient is φ = 21575002320.

The previous prime is 31463545207. The next prime is 31463545247. The reversal of 31463545225 is 52254536413.

It is a de Polignac number, because none of the positive numbers 2^k-31463545225 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 89895669 + ... + 89896018.

Almost surely, 2^31463545225 is an apocalyptic number.

31463545225 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

31463545225 is a deficient number, since it is larger than the sum of its proper divisors (13124793399).

31463545225 is a wasteful number, since it uses less digits than its factorization.

31463545225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179791704 (or 179791699 counting only the distinct ones).

The product of its digits is 432000, while the sum is 40.

The spelling of 31463545225 in words is "thirty-one billion, four hundred sixty-three million, five hundred forty-five thousand, two hundred twenty-five".