53057555077 has 4 divisors (see below), whose sum is σ = 53309012896. Its totient is φ = 52806097260.

The previous prime is 53057555051. The next prime is 53057555113. The reversal of 53057555077 is 77055575035.

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 a de Polignac number, because none of the positive numbers 2^k-53057555077 is a prime.

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 53057555077.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53057555017) 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, 125728593 + ... + 125729014.

It is an arithmetic number, because the mean of its divisors is an integer number (13327253224).

Almost surely, 2^53057555077 is an apocalyptic number.

It is an amenable number.

53057555077 is a deficient number, since it is larger than the sum of its proper divisors (251457819).

53057555077 is a wasteful number, since it uses less digits than its factorization.

53057555077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251457818.

The product of its (nonzero) digits is 3215625, while the sum is 49.

The spelling of 53057555077 in words is "fifty-three billion, fifty-seven million, five hundred fifty-five thousand, seventy-seven".