53005052505557 has 4 divisors (see below), whose sum is σ = 53279690083500. Its totient is φ = 52730414927616.

The previous prime is 53005052505553. The next prime is 53005052505563. The reversal of 53005052505557 is 75550525050035.

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 11417850498961 + 41587202006596 = 3379031^2 + 6448814^2 .

It is a cyclic number.

It is not a de Polignac number, because 53005052505557 - 2² = 53005052505553 is a prime.

It is a super-2 number, since 2×53005052505557² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53005052505551) 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, 137318788682 + ... + 137318789067.

It is an arithmetic number, because the mean of its divisors is an integer number (13319922520875).

Almost surely, 2^{53005052505557} is an apocalyptic number.

It is an amenable number.

53005052505557 is a deficient number, since it is larger than the sum of its proper divisors (274637577943).

53005052505557 is a wasteful number, since it uses less digits than its factorization.

53005052505557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274637577942.

The product of its (nonzero) digits is 3281250, while the sum is 47.

The spelling of 53005052505557 in words is "fifty-three trillion, five billion, fifty-two million, five hundred five thousand, five hundred fifty-seven".