31673402225 has 24 divisors (see below), whose sum is σ = 40127038848. Its totient is φ = 24789473600.

The previous prime is 31673402209. The next prime is 31673402237. The reversal of 31673402225 is 52220437613.

It is not a de Polignac number, because 31673402225 - 2⁴ = 31673402209 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4316810 + ... + 4324140.

It is an arithmetic number, because the mean of its divisors is an integer number (1671959952).

Almost surely, 2^31673402225 is an apocalyptic number.

It is an amenable number.

31673402225 is a deficient number, since it is larger than the sum of its proper divisors (8453636623).

31673402225 is a wasteful number, since it uses less digits than its factorization.

31673402225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11065 (or 11060 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 35.

Adding to 31673402225 its reverse (52220437613), we get a palindrome (83893839838).

The spelling of 31673402225 in words is "thirty-one billion, six hundred seventy-three million, four hundred two thousand, two hundred twenty-five".