31483725 has 72 divisors (see below), whose sum is σ = 65308320. Its totient is φ = 13265280.

The previous prime is 31483723. The next prime is 31483733. The reversal of 31483725 is 52738413.

It is not a de Polignac number, because 31483725 - 2¹ = 31483723 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31483723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 47446 + ... + 48104.

It is an arithmetic number, because the mean of its divisors is an integer number (907060).

Almost surely, 2^31483725 is an apocalyptic number.

31483725 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

31483725 is an abundant number, since it is smaller than the sum of its proper divisors (33824595).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31483725 is a wasteful number, since it uses less digits than its factorization.

31483725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 699 (or 687 counting only the distinct ones).

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

The square root of 31483725 is about 5611.0360005974. The cubic root of 31483725 is about 315.7635796385.

The spelling of 31483725 in words is "thirty-one million, four hundred eighty-three thousand, seven hundred twenty-five".