5571649087 has 4 divisors (see below), whose sum is σ = 5572076400. Its totient is φ = 5571221776.

The previous prime is 5571649079. The next prime is 5571649093. The reversal of 5571649087 is 7809461755.

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

It is a cyclic number.

It is not a de Polignac number, because 5571649087 - 2³ = 5571649079 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 (5571649487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 193462 + ... + 220387.

It is an arithmetic number, because the mean of its divisors is an integer number (1393019100).

Almost surely, 2^5571649087 is an apocalyptic number.

5571649087 is a deficient number, since it is larger than the sum of its proper divisors (427313).

5571649087 is a wasteful number, since it uses less digits than its factorization.

5571649087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 427312.

The product of its (nonzero) digits is 2116800, while the sum is 52.

The square root of 5571649087 is about 74643.4798693094. The cubic root of 5571649087 is about 1772.8061594841.

The spelling of 5571649087 in words is "five billion, five hundred seventy-one million, six hundred forty-nine thousand, eighty-seven".