31860465025 has 27 divisors (see below), whose sum is σ = 40949527593. Its totient is φ = 24589471200.

The previous prime is 31860465011. The next prime is 31860465029. The reversal of 31860465025 is 52056406813.

The square root of 31860465025 is 178495.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 437939329 + 31422525696 = 20927^2 + 177264^2 .

It is a de Polignac number, because none of the positive numbers 2^k-31860465025 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31860465029) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 25881160 + ... + 25882390.

Almost surely, 2^31860465025 is an apocalyptic number.

31860465025 is the 178495-th square number.

31860465025 is the 89248-th centered octagonal number.

It is an amenable number.

31860465025 is a deficient number, since it is larger than the sum of its proper divisors (9089062568).

31860465025 is an frugal number, since it uses more digits than its factorization.

31860465025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2530 (or 1265 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 40.

The spelling of 31860465025 in words is "thirty-one billion, eight hundred sixty million, four hundred sixty-five thousand, twenty-five".