5091555655 has 16 divisors (see below), whose sum is σ = 6411156480. Its totient is φ = 3874365088.

The previous prime is 5091555629. The next prime is 5091555659. The reversal of 5091555655 is 5565551905.

It is not a de Polignac number, because 5091555655 - 2⁷ = 5091555527 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5091555659) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 103087 + ... + 144256.

It is an arithmetic number, because the mean of its divisors is an integer number (400697280).

Almost surely, 2^5091555655 is an apocalyptic number.

5091555655 is a deficient number, since it is larger than the sum of its proper divisors (1319600825).

5091555655 is a wasteful number, since it uses less digits than its factorization.

5091555655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247550.

The product of its (nonzero) digits is 843750, while the sum is 46.

The square root of 5091555655 is about 71355.1375515456. The cubic root of 5091555655 is about 1720.3500791612.

The spelling of 5091555655 in words is "five billion, ninety-one million, five hundred fifty-five thousand, six hundred fifty-five".