5591490291 has 16 divisors (see below), whose sum is σ = 8290022400. Its totient is φ = 3724810344.

The previous prime is 5591490241. The next prime is 5591490347. The reversal of 5591490291 is 1920941955.

5591490291 is a `hidden beast` number, since 55 + 91 + 490 + 29 + 1 = 666.

It is not a de Polignac number, because 5591490291 - 2⁶ = 5591490227 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5591490241) 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, 42891 + ... + 114116.

It is an arithmetic number, because the mean of its divisors is an integer number (518126400).

Almost surely, 2^5591490291 is an apocalyptic number.

5591490291 is a deficient number, since it is larger than the sum of its proper divisors (2698532109).

5591490291 is a wasteful number, since it uses less digits than its factorization.

5591490291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158335 (or 158329 counting only the distinct ones).

The product of its (nonzero) digits is 145800, while the sum is 45.

The square root of 5591490291 is about 74776.2682339792. The cubic root of 5591490291 is about 1774.9080469194.

The spelling of 5591490291 in words is "five billion, five hundred ninety-one million, four hundred ninety thousand, two hundred ninety-one".