53123408657 has 4 divisors (see below), whose sum is σ = 57952809456. Its totient is φ = 48294007860.

The previous prime is 53123408641. The next prime is 53123408707. The reversal of 53123408657 is 75680432135.

53123408657 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 53123408657 - 2⁴ = 53123408641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53123408617) 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, 2414700383 + ... + 2414700404.

It is an arithmetic number, because the mean of its divisors is an integer number (14488202364).

Almost surely, 2^53123408657 is an apocalyptic number.

It is an amenable number.

53123408657 is a deficient number, since it is larger than the sum of its proper divisors (4829400799).

53123408657 is a wasteful number, since it uses less digits than its factorization.

53123408657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4829400798.

The product of its (nonzero) digits is 604800, while the sum is 44.

The spelling of 53123408657 in words is "fifty-three billion, one hundred twenty-three million, four hundred eight thousand, six hundred fifty-seven".