53116691301021 has 4 divisors (see below), whose sum is σ = 70822255068032. Its totient is φ = 35411127534012.

The previous prime is 53116691301019. The next prime is 53116691301101. The reversal of 53116691301021 is 12010319661135.

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 not a de Polignac number, because 53116691301021 - 2¹ = 53116691301019 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53116691321021) 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 in 3 ways as a sum of consecutive naturals, for example, 8852781883501 + ... + 8852781883506.

It is an arithmetic number, because the mean of its divisors is an integer number (17705563767008).

Almost surely, 2^{53116691301021} is an apocalyptic number.

It is an amenable number.

53116691301021 is a deficient number, since it is larger than the sum of its proper divisors (17705563767011).

53116691301021 is a wasteful number, since it uses less digits than its factorization.

53116691301021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17705563767010.

The product of its (nonzero) digits is 29160, while the sum is 39.

The spelling of 53116691301021 in words is "fifty-three trillion, one hundred sixteen billion, six hundred ninety-one million, three hundred one thousand, twenty-one".