31372485 has 16 divisors (see below), whose sum is σ = 51553536. Its totient is φ = 16279488.

The previous prime is 31372469. The next prime is 31372493. The reversal of 31372485 is 58427313.

It is not a de Polignac number, because 31372485 - 2⁴ = 31372469 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27709 + ... + 28818.

It is an arithmetic number, because the mean of its divisors is an integer number (3222096).

Almost surely, 2^31372485 is an apocalyptic number.

It is an amenable number.

31372485 is a deficient number, since it is larger than the sum of its proper divisors (20181051).

31372485 is a wasteful number, since it uses less digits than its factorization.

31372485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56572.

The product of its digits is 20160, while the sum is 33.

The square root of 31372485 is about 5601.1146212160. The cubic root of 31372485 is about 315.3912497956.

Adding to 31372485 its reverse (58427313), we get a palindrome (89799798).

The spelling of 31372485 in words is "thirty-one million, three hundred seventy-two thousand, four hundred eighty-five".