31513500053 has 8 divisors (see below), whose sum is σ = 36016506240. Its totient is φ = 27010763280.

The previous prime is 31513500037. The next prime is 31513500061. The reversal of 31513500053 is 35000531513.

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 31513500053 - 2⁴ = 31513500037 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 31513499995 and 31513500031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31513500353) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 393983 + ... + 467171.

It is an arithmetic number, because the mean of its divisors is an integer number (4502063280).

Almost surely, 2^31513500053 is an apocalyptic number.

It is an amenable number.

31513500053 is a deficient number, since it is larger than the sum of its proper divisors (4503006187).

31513500053 is an equidigital number, since it uses as much as digits as its factorization.

31513500053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134707.

The product of its (nonzero) digits is 3375, while the sum is 26.

The spelling of 31513500053 in words is "thirty-one billion, five hundred thirteen million, five hundred thousand, fifty-three".