5550504991 has 2 divisors, whose sum is σ = 5550504992. Its totient is φ = 5550504990.

The previous prime is 5550504983. The next prime is 5550505031. The reversal of 5550504991 is 1994050555.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5550504991 - 2³ = 5550504983 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5550504931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2775252495 + 2775252496.

It is an arithmetic number, because the mean of its divisors is an integer number (2775252496).

Almost surely, 2^5550504991 is an apocalyptic number.

5550504991 is a deficient number, since it is larger than the sum of its proper divisors (1).

5550504991 is an equidigital number, since it uses as much as digits as its factorization.

5550504991 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 202500, while the sum is 43.

The square root of 5550504991 is about 74501.7113293379. The cubic root of 5550504991 is about 1770.5607500127.

The spelling of 5550504991 in words is "five billion, five hundred fifty million, five hundred four thousand, nine hundred ninety-one".