31732078225 has 27 divisors (see below), whose sum is σ = 41159502993. Its totient is φ = 24266262240.

The previous prime is 31732078211. The next prime is 31732078243. The reversal of 31732078225 is 52287023713.

The square root of 31732078225 is 178135.

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 2889170001 + 28842908224 = 53751^2 + 169832^2 .

It is not a de Polignac number, because 31732078225 - 2⁵ = 31732078193 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 20484751 + ... + 20486299.

Almost surely, 2^31732078225 is an apocalyptic number.

31732078225 is the 178135-th square number.

31732078225 is the 89068-th centered octagonal number.

It is an amenable number.

31732078225 is a deficient number, since it is larger than the sum of its proper divisors (9427424768).

31732078225 is an frugal number, since it uses more digits than its factorization.

31732078225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3154 (or 1577 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 40.

The spelling of 31732078225 in words is "thirty-one billion, seven hundred thirty-two million, seventy-eight thousand, two hundred twenty-five".