53910568813 has 4 divisors (see below), whose sum is σ = 55057602240. Its totient is φ = 52763535388.

The previous prime is 53910568801. The next prime is 53910568823. The reversal of 53910568813 is 31886501935.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 53910568813 - 2¹⁷ = 53910437741 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53910568823) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 573516643 + ... + 573516736.

It is an arithmetic number, because the mean of its divisors is an integer number (13764400560).

Almost surely, 2^53910568813 is an apocalyptic number.

It is an amenable number.

53910568813 is a deficient number, since it is larger than the sum of its proper divisors (1147033427).

53910568813 is a wasteful number, since it uses less digits than its factorization.

53910568813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1147033426.

The product of its (nonzero) digits is 777600, while the sum is 49.

The spelling of 53910568813 in words is "fifty-three billion, nine hundred ten million, five hundred sixty-eight thousand, eight hundred thirteen".