31364625 has 16 divisors (see below), whose sum is σ = 52191360. Its totient is φ = 16727600.

The previous prime is 31364603. The next prime is 31364629. The reversal of 31364625 is 52646313.

It is not a de Polignac number, because 31364625 - 2¹³ = 31356433 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31364592 and 31364601.

It is not an unprimeable number, because it can be changed into a prime (31364629) 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 15 ways as a sum of consecutive naturals, for example, 41445 + ... + 42194.

It is an arithmetic number, because the mean of its divisors is an integer number (3261960).

Almost surely, 2^31364625 is an apocalyptic number.

It is an amenable number.

31364625 is a deficient number, since it is larger than the sum of its proper divisors (20826735).

31364625 is an equidigital number, since it uses as much as digits as its factorization.

31364625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83657 (or 83647 counting only the distinct ones).

The product of its digits is 12960, while the sum is 30.

The square root of 31364625 is about 5600.4129312043. The cubic root of 31364625 is about 315.3649084302.

The spelling of 31364625 in words is "thirty-one million, three hundred sixty-four thousand, six hundred twenty-five".