53506365677 has 4 divisors (see below), whose sum is σ = 53523578940. Its totient is φ = 53489152416.

The previous prime is 53506365637. The next prime is 53506365713. The reversal of 53506365677 is 77656360535.

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

It can be written as a sum of positive squares in 2 ways, for example, as 36691019401 + 16815346276 = 191549^2 + 129674^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53506365677 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 (53506365637) 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, 8601968 + ... + 8608185.

It is an arithmetic number, because the mean of its divisors is an integer number (13380894735).

Almost surely, 2^53506365677 is an apocalyptic number.

It is an amenable number.

53506365677 is a deficient number, since it is larger than the sum of its proper divisors (17213263).

53506365677 is a wasteful number, since it uses less digits than its factorization.

53506365677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17213262.

The product of its (nonzero) digits is 11907000, while the sum is 53.

The spelling of 53506365677 in words is "fifty-three billion, five hundred six million, three hundred sixty-five thousand, six hundred seventy-seven".