5551547771 has 16 divisors (see below), whose sum is σ = 6924192000. Its totient is φ = 4324142880.

The previous prime is 5551547741. The next prime is 5551547819. The reversal of 5551547771 is 1777451555.

It is a cyclic number.

It is not a de Polignac number, because 5551547771 - 2³⁰ = 4477805947 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5551547731) 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, 198560 + ... + 224786.

It is an arithmetic number, because the mean of its divisors is an integer number (432762000).

Almost surely, 2^5551547771 is an apocalyptic number.

5551547771 is a deficient number, since it is larger than the sum of its proper divisors (1372644229).

5551547771 is a wasteful number, since it uses less digits than its factorization.

5551547771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28994.

The product of its digits is 857500, while the sum is 47.

The square root of 5551547771 is about 74508.7093634026. The cubic root of 5551547771 is about 1770.6716221905.

The spelling of 5551547771 in words is "five billion, five hundred fifty-one million, five hundred forty-seven thousand, seven hundred seventy-one".