5115555 has 40 divisors (see below), whose sum is σ = 9722592. Its totient is φ = 2564352.

The previous prime is 5115533. The next prime is 5115559. The reversal of 5115555 is 5555115.

It is not a de Polignac number, because 5115555 - 2⁶ = 5115491 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (5115559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 6514 + ... + 7256.

Almost surely, 2^5115555 is an apocalyptic number.

5115555 is a deficient number, since it is larger than the sum of its proper divisors (4607037).

5115555 is a wasteful number, since it uses less digits than its factorization.

5115555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 777 (or 768 counting only the distinct ones).

The product of its digits is 3125, while the sum is 27.

The square root of 5115555 is about 2261.7592710101. The cubic root of 5115555 is about 172.3048833544.

It can be divided in two parts, 5 and 115555, that multiplied together give a palindrome (577775).

The spelling of 5115555 in words is "five million, one hundred fifteen thousand, five hundred fifty-five".