31325 has 12 divisors (see below), whose sum is σ = 44640. Its totient is φ = 21360.

The previous prime is 31321. The next prime is 31327. The reversal of 31325 is 52313.

It is not a de Polignac number, because 31325 - 2² = 31321 is a prime.

It is a plaindrome in base 13.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 31325.

It is not an unprimeable number, because it can be changed into a prime (31321) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 86 + ... + 264.

It is an arithmetic number, because the mean of its divisors is an integer number (3720).

2³¹³²⁵ is an apocalyptic number.

31325 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

31325 is a deficient number, since it is larger than the sum of its proper divisors (13315).

31325 is a wasteful number, since it uses less digits than its factorization.

31325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196 (or 191 counting only the distinct ones).

The product of its digits is 90, while the sum is 14.

The square root of 31325 is about 176.9887002043. The cubic root of 31325 is about 31.5232045365.

Adding to 31325 its reverse (52313), we get a palindrome (83638).

The spelling of 31325 in words is "thirty-one thousand, three hundred twenty-five".