5055500991 has 4 divisors (see below), whose sum is σ = 6740667992. Its totient is φ = 3370333992.

The previous prime is 5055500971. The next prime is 5055501001. The reversal of 5055500991 is 1990055505.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 5055500991 - 2⁵ = 5055500959 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 (5055500971) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 842583496 + ... + 842583501.

It is an arithmetic number, because the mean of its divisors is an integer number (1685166998).

Almost surely, 2^5055500991 is an apocalyptic number.

5055500991 is a deficient number, since it is larger than the sum of its proper divisors (1685167001).

5055500991 is a wasteful number, since it uses less digits than its factorization.

5055500991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1685167000.

The product of its (nonzero) digits is 50625, while the sum is 39.

The square root of 5055500991 is about 71102.0463207635. The cubic root of 5055500991 is about 1716.2797035521.

The spelling of 5055500991 in words is "five billion, fifty-five million, five hundred thousand, nine hundred ninety-one".