55060055510561 has 4 divisors (see below), whose sum is σ = 55605204575124. Its totient is φ = 54514906446000.

The previous prime is 55060055510539. The next prime is 55060055510623. The reversal of 55060055510561 is 16501555006055.

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 27048112608400 + 28011942902161 = 5200780^2 + 5292631^2 .

It is a cyclic number.

It is not a de Polignac number, because 55060055510561 - 2²⁶ = 55059988401697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55060055510521) 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, 272574532130 + ... + 272574532331.

It is an arithmetic number, because the mean of its divisors is an integer number (13901301143781).

Almost surely, 2^{55060055510561} is an apocalyptic number.

It is an amenable number.

55060055510561 is a deficient number, since it is larger than the sum of its proper divisors (545149064563).

55060055510561 is a wasteful number, since it uses less digits than its factorization.

55060055510561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 545149064562.

The product of its (nonzero) digits is 562500, while the sum is 44.

The spelling of 55060055510561 in words is "fifty-five trillion, sixty billion, fifty-five million, five hundred ten thousand, five hundred sixty-one".