5549071491 has 24 divisors (see below), whose sum is σ = 8072195040. Its totient is φ = 3673184256.

The previous prime is 5549071483. The next prime is 5549071499. The reversal of 5549071491 is 1941709455.

5549071491 is a `hidden beast` number, since 5 + 5 + 4 + 90 + 71 + 491 = 666.

It is an interprime number because it is at equal distance from previous prime (5549071483) and next prime (5549071499).

It is not a de Polignac number, because 5549071491 - 2³ = 5549071483 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5549071499) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2062275 + ... + 2064963.

It is an arithmetic number, because the mean of its divisors is an integer number (336341460).

Almost surely, 2^5549071491 is an apocalyptic number.

5549071491 is a deficient number, since it is larger than the sum of its proper divisors (2523123549).

5549071491 is a wasteful number, since it uses less digits than its factorization.

5549071491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4235 (or 4232 counting only the distinct ones).

The product of its (nonzero) digits is 226800, while the sum is 45.

The square root of 5549071491 is about 74492.0901237172. The cubic root of 5549071491 is about 1770.4083123894.

The spelling of 5549071491 in words is "five billion, five hundred forty-nine million, seventy-one thousand, four hundred ninety-one".