31832625889 has 3 divisors (see below), whose sum is σ = 31832804307. Its totient is φ = 31832447472.

The previous prime is 31832625871. The next prime is 31832625901. The reversal of 31832625889 is 98852623813.

The square root of 31832625889 is 178417.

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

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 994456225 + 30838169664 = 31535^2 + 175608^2 .

It is not a de Polignac number, because 31832625889 - 2⁵ = 31832625857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31832625809) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 89209 + ... + 267625.

It is an arithmetic number, because the mean of its divisors is an integer number (10610934769).

Almost surely, 2^31832625889 is an apocalyptic number.

31832625889 is the 178417-th square number.

31832625889 is the 89209-th centered octagonal number.

It is an amenable number.

31832625889 is a deficient number, since it is larger than the sum of its proper divisors (178418).

31832625889 is an frugal number, since it uses more digits than its factorization.

31832625889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356834 (or 178417 counting only the distinct ones).

The product of its digits is 4976640, while the sum is 55.

It can be divided in two parts, 31832 and 625889, that added together give a square (657721 = 811²).

The spelling of 31832625889 in words is "thirty-one billion, eight hundred thirty-two million, six hundred twenty-five thousand, eight hundred eighty-nine".