5561115057 has 6 divisors (see below), whose sum is σ = 8032721762. Its totient is φ = 3707410032.

The previous prime is 5561114983. The next prime is 5561115083. The reversal of 5561115057 is 7505111655.

It is a happy number.

5561115057 is a `hidden beast` number, since 556 + 1 + 1 + 1 + 50 + 57 = 666.

It can be written as a sum of positive squares in only one way, i.e., 5311348641 + 249766416 = 72879^2 + 15804^2 .

It is not a de Polignac number, because 5561115057 - 2¹⁶ = 5561049521 is a prime.

It is a super-2 number, since 2×5561115057² = 61852001354384226498, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5561114057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 308950828 + ... + 308950845.

Almost surely, 2^5561115057 is an apocalyptic number.

It is an amenable number.

5561115057 is a deficient number, since it is larger than the sum of its proper divisors (2471606705).

5561115057 is a wasteful number, since it uses less digits than its factorization.

5561115057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 617901679 (or 617901676 counting only the distinct ones).

The product of its (nonzero) digits is 26250, while the sum is 36.

The square root of 5561115057 is about 74572.8841939213. The cubic root of 5561115057 is about 1771.6882035306.

The spelling of 5561115057 in words is "five billion, five hundred sixty-one million, one hundred fifteen thousand, fifty-seven".