31513052253 has 8 divisors (see below), whose sum is σ = 42027285600. Its totient is φ = 21003760208.

The previous prime is 31513052227. The next prime is 31513052257. The reversal of 31513052253 is 35225031513.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31513052253 - 2⁹ = 31513051741 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 31513052253.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31513052257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1220418 + ... + 1245971.

It is an arithmetic number, because the mean of its divisors is an integer number (5253410700).

Almost surely, 2^31513052253 is an apocalyptic number.

It is an amenable number.

31513052253 is a deficient number, since it is larger than the sum of its proper divisors (10514233347).

31513052253 is a wasteful number, since it uses less digits than its factorization.

31513052253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2470651.

The product of its (nonzero) digits is 13500, while the sum is 30.

Adding to 31513052253 its reverse (35225031513), we get a palindrome (66738083766).

The spelling of 31513052253 in words is "thirty-one billion, five hundred thirteen million, fifty-two thousand, two hundred fifty-three".