5115555501 has 32 divisors (see below), whose sum is σ = 8029452288. Its totient is φ = 2836209600.

The previous prime is 5115555499. The next prime is 5115555503. The reversal of 5115555501 is 1055555115.

It is an interprime number because it is at equal distance from previous prime (5115555499) and next prime (5115555503).

It is not a de Polignac number, because 5115555501 - 2¹ = 5115555499 is a prime.

It is a super-2 number, since 2×5115555501² = 52337816167622722002, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5115555503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 117595 + ... + 155111.

It is an arithmetic number, because the mean of its divisors is an integer number (250920384).

Almost surely, 2^5115555501 is an apocalyptic number.

It is an amenable number.

5115555501 is a deficient number, since it is larger than the sum of its proper divisors (2913896787).

5115555501 is a wasteful number, since it uses less digits than its factorization.

5115555501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37721.

The product of its (nonzero) digits is 15625, while the sum is 33.

The square root of 5115555501 is about 71523.1116563031. Note that the first 3 decimals coincide. The cubic root of 5115555501 is about 1723.0488897937.

The spelling of 5115555501 in words is "five billion, one hundred fifteen million, five hundred fifty-five thousand, five hundred one".