31272007225 has 6 divisors (see below), whose sum is σ = 38777288990. Its totient is φ = 25017605760.

The previous prime is 31272007211. The next prime is 31272007267. The reversal of 31272007225 is 52270027213.

It can be written as a sum of positive squares in 3 ways, for example, as 146579449 + 31125427776 = 12107^2 + 176424^2 .

It is not a de Polignac number, because 31272007225 - 2⁹ = 31272006713 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 625440120 + ... + 625440169.

Almost surely, 2^31272007225 is an apocalyptic number.

It is an amenable number.

31272007225 is a deficient number, since it is larger than the sum of its proper divisors (7505281765).

31272007225 is a wasteful number, since it uses less digits than its factorization.

31272007225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1250880299 (or 1250880294 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 31.

The spelling of 31272007225 in words is "thirty-one billion, two hundred seventy-two million, seven thousand, two hundred twenty-five".