53180772479 has 4 divisors (see below), whose sum is σ = 53325679584. Its totient is φ = 53035865376.

The previous prime is 53180772473. The next prime is 53180772481. The reversal of 53180772479 is 97427708135.

53180772479 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53180772479 is a prime.

It is a super-2 number, since 2×53180772479² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 53180772479.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53180772473) 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, 72453002 + ... + 72453735.

It is an arithmetic number, because the mean of its divisors is an integer number (13331419896).

Almost surely, 2^53180772479 is an apocalyptic number.

53180772479 is a deficient number, since it is larger than the sum of its proper divisors (144907105).

53180772479 is a wasteful number, since it uses less digits than its factorization.

53180772479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144907104.

The product of its (nonzero) digits is 2963520, while the sum is 53.

The spelling of 53180772479 in words is "fifty-three billion, one hundred eighty million, seven hundred seventy-two thousand, four hundred seventy-nine".