31504633253 has 2 divisors, whose sum is σ = 31504633254. Its totient is φ = 31504633252.

The previous prime is 31504633243. The next prime is 31504633271. The reversal of 31504633253 is 35233640513.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29030366689 + 2474266564 = 170383^2 + 49742^2 .

It is a cyclic number.

It is not a de Polignac number, because 31504633253 - 2²⁶ = 31437524389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31504633213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15752316626 + 15752316627.

It is an arithmetic number, because the mean of its divisors is an integer number (15752316627).

Almost surely, 2^31504633253 is an apocalyptic number.

It is an amenable number.

31504633253 is a deficient number, since it is larger than the sum of its proper divisors (1).

31504633253 is an equidigital number, since it uses as much as digits as its factorization.

31504633253 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 97200, while the sum is 35.

The spelling of 31504633253 in words is "thirty-one billion, five hundred four million, six hundred thirty-three thousand, two hundred fifty-three".