5115561051 has 4 divisors (see below), whose sum is σ = 6820748072. Its totient is φ = 3410374032.

The previous prime is 5115561049. The next prime is 5115561079. The reversal of 5115561051 is 1501655115.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 5115561051 - 2¹ = 5115561049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5115561251) 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, 852593506 + ... + 852593511.

It is an arithmetic number, because the mean of its divisors is an integer number (1705187018).

Almost surely, 2^5115561051 is an apocalyptic number.

5115561051 is a deficient number, since it is larger than the sum of its proper divisors (1705187021).

5115561051 is a wasteful number, since it uses less digits than its factorization.

5115561051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1705187020.

The product of its (nonzero) digits is 3750, while the sum is 30.

The square root of 5115561051 is about 71523.1504549401. The cubic root of 5115561051 is about 1723.0495129204.

The spelling of 5115561051 in words is "five billion, one hundred fifteen million, five hundred sixty-one thousand, fifty-one".