5115988957 has 4 divisors (see below), whose sum is σ = 5118206940. Its totient is φ = 5113770976.

The previous prime is 5115988951. The next prime is 5115989003. The reversal of 5115988957 is 7598895115.

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 4681433241 + 434555716 = 68421^2 + 20846^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5115988957 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 (5115988951) 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, 1105528 + ... + 1110145.

It is an arithmetic number, because the mean of its divisors is an integer number (1279551735).

Almost surely, 2^5115988957 is an apocalyptic number.

It is an amenable number.

5115988957 is a deficient number, since it is larger than the sum of its proper divisors (2217983).

5115988957 is a wasteful number, since it uses less digits than its factorization.

5115988957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2217982.

The product of its digits is 4536000, while the sum is 58.

The square root of 5115988957 is about 71526.1417734803. The cubic root of 5115988957 is about 1723.0975547455.

The spelling of 5115988957 in words is "five billion, one hundred fifteen million, nine hundred eighty-eight thousand, nine hundred fifty-seven".