55510051010561 has 6 divisors (see below), whose sum is σ = 64572916481730. Its totient is φ = 47580043723296.

The previous prime is 55510051010509. The next prime is 55510051010563. The reversal of 55510051010561 is 16501015001555.

It can be written as a sum of positive squares in only one way, i.e., 46122353326336 + 9387697684225 = 6791344^2 + 3063935^2 .

It is not a de Polignac number, because 55510051010561 - 2³⁰ = 55508977268737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55510051010563) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 566429091896 + ... + 566429091993.

It is an arithmetic number, because the mean of its divisors is an integer number (10762152746955).

Almost surely, 2^{55510051010561} is an apocalyptic number.

It is an amenable number.

55510051010561 is a deficient number, since it is larger than the sum of its proper divisors (9062865471169).

55510051010561 is a wasteful number, since it uses less digits than its factorization.

55510051010561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1132858183903 (or 1132858183896 counting only the distinct ones).

The product of its (nonzero) digits is 18750, while the sum is 35.

The spelling of 55510051010561 in words is "fifty-five trillion, five hundred ten billion, fifty-one million, ten thousand, five hundred sixty-one".