5512566500261 has 4 divisors (see below), whose sum is σ = 5702655000300. Its totient is φ = 5322478000224.

The previous prime is 5512566500251. The next prime is 5512566500333. The reversal of 5512566500261 is 1620056652155.

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 3148601824900 + 2363964675361 = 1774430^2 + 1537519^2 .

It is a cyclic number.

It is not a de Polignac number, because 5512566500261 - 2³⁸ = 5237688593317 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5512566500251) 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, 95044249976 + ... + 95044250033.

It is an arithmetic number, because the mean of its divisors is an integer number (1425663750075).

Almost surely, 2^{5512566500261} is an apocalyptic number.

It is an amenable number.

5512566500261 is a deficient number, since it is larger than the sum of its proper divisors (190088500039).

5512566500261 is a wasteful number, since it uses less digits than its factorization.

5512566500261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190088500038.

The product of its (nonzero) digits is 540000, while the sum is 44.

The spelling of 5512566500261 in words is "five trillion, five hundred twelve billion, five hundred sixty-six million, five hundred thousand, two hundred sixty-one".