31332485 has 4 divisors (see below), whose sum is σ = 37598988. Its totient is φ = 25065984.

The previous prime is 31332473. The next prime is 31332491. The reversal of 31332485 is 58423313.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 23049601 + 8282884 = 4801^2 + 2878^2 .

It is a cyclic number.

It is not a de Polignac number, because 31332485 - 2⁶ = 31332421 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3133244 + ... + 3133253.

It is an arithmetic number, because the mean of its divisors is an integer number (9399747).

Almost surely, 2^31332485 is an apocalyptic number.

It is an amenable number.

31332485 is a deficient number, since it is larger than the sum of its proper divisors (6266503).

31332485 is an equidigital number, since it uses as much as digits as its factorization.

31332485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6266502.

The product of its digits is 8640, while the sum is 29.

The square root of 31332485 is about 5597.5427644637. The cubic root of 31332485 is about 315.2571512328.

Adding to 31332485 its reverse (58423313), we get a palindrome (89755798).

The spelling of 31332485 in words is "thirty-one million, three hundred thirty-two thousand, four hundred eighty-five".