53497716077 has 6 divisors (see below), whose sum is σ = 57929479722. Its totient is φ = 49382506992.

The previous prime is 53497716067. The next prime is 53497716101. The reversal of 53497716077 is 77061779435.

It can be written as a sum of positive squares in 3 ways, for example, as 3076809961 + 50420906116 = 55469^2 + 224546^2 .

It is a de Polignac number, because none of the positive numbers 2^k-53497716077 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 (53497716067) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 158277098 + ... + 158277435.

It is an arithmetic number, because the mean of its divisors is an integer number (9654913287).

Almost surely, 2^53497716077 is an apocalyptic number.

It is an amenable number.

53497716077 is a deficient number, since it is larger than the sum of its proper divisors (4431763645).

53497716077 is a wasteful number, since it uses less digits than its factorization.

53497716077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316554559 (or 316554546 counting only the distinct ones).

The product of its (nonzero) digits is 7779240, while the sum is 56.

The spelling of 53497716077 in words is "fifty-three billion, four hundred ninety-seven million, seven hundred sixteen thousand, seventy-seven".