5055509961 has 12 divisors (see below), whose sum is σ = 7480511220. Its totient is φ = 3288136320.

The previous prime is 5055509959. The next prime is 5055509989. The reversal of 5055509961 is 1699055505.

5055509961 is a `hidden beast` number, since 5 + 0 + 5 + 550 + 9 + 96 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 2656371600 + 2399138361 = 51540^2 + 48981^2 .

It is not a de Polignac number, because 5055509961 - 2¹ = 5055509959 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5055509161) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6849916 + ... + 6850653.

It is an arithmetic number, because the mean of its divisors is an integer number (623375935).

Almost surely, 2^5055509961 is an apocalyptic number.

It is an amenable number.

5055509961 is a deficient number, since it is larger than the sum of its proper divisors (2425001259).

5055509961 is a wasteful number, since it uses less digits than its factorization.

5055509961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13700616 (or 13700613 counting only the distinct ones).

The product of its (nonzero) digits is 303750, while the sum is 45.

The square root of 5055509961 is about 71102.1093990889. The cubic root of 5055509961 is about 1716.2807186193.

The spelling of 5055509961 in words is "five billion, fifty-five million, five hundred nine thousand, nine hundred sixty-one".