53550563652557 has 16 divisors (see below), whose sum is σ = 55804399372800. Its totient is φ = 51323918217600.

The previous prime is 53550563652533. The next prime is 53550563652563. The reversal of 53550563652557 is 75525636505535.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53550563652557 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 53550563652557.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53550563052557) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78161432 + ... + 78843582.

It is an arithmetic number, because the mean of its divisors is an integer number (3487774960800).

Almost surely, 2^{53550563652557} is an apocalyptic number.

It is an amenable number.

53550563652557 is a deficient number, since it is larger than the sum of its proper divisors (2253835720243).

53550563652557 is a wasteful number, since it uses less digits than its factorization.

53550563652557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 702076.

The product of its (nonzero) digits is 354375000, while the sum is 62.

The spelling of 53550563652557 in words is "fifty-three trillion, five hundred fifty billion, five hundred sixty-three million, six hundred fifty-two thousand, five hundred fifty-seven".