5155561015 has 32 divisors (see below), whose sum is σ = 7176314880. Its totient is φ = 3514022400.

The previous prime is 5155561001. The next prime is 5155561039. The reversal of 5155561015 is 5101655515.

It is not a de Polignac number, because 5155561015 - 2¹³ = 5155552823 is a prime.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 211930 + ... + 235000.

It is an arithmetic number, because the mean of its divisors is an integer number (224259840).

Almost surely, 2^5155561015 is an apocalyptic number.

5155561015 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

5155561015 is a deficient number, since it is larger than the sum of its proper divisors (2020753865).

5155561015 is a wasteful number, since it uses less digits than its factorization.

5155561015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23343.

The product of its (nonzero) digits is 18750, while the sum is 34.

The square root of 5155561015 is about 71802.2354457018. The cubic root of 5155561015 is about 1727.5288557447.

The spelling of 5155561015 in words is "five billion, one hundred fifty-five million, five hundred sixty-one thousand, fifteen".