5551771 has 4 divisors (see below), whose sum is σ = 5556600. Its totient is φ = 5546944.

The previous prime is 5551757. The next prime is 5551783. The reversal of 5551771 is 1771555.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 5551771 - 2⁷ = 5551643 is a prime.

It is a super-2 number, since 2×5551771² = 61644322472882, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5558771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 420 + ... + 3358.

It is an arithmetic number, because the mean of its divisors is an integer number (1389150).

Almost surely, 2^5551771 is an apocalyptic number.

5551771 is a deficient number, since it is larger than the sum of its proper divisors (4829).

5551771 is a wasteful number, since it uses less digits than its factorization.

5551771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4828.

The product of its digits is 6125, while the sum is 31.

The square root of 5551771 is about 2356.2196417142. The cubic root of 5551771 is about 177.0695354909.

The spelling of 5551771 in words is "five million, five hundred fifty-one thousand, seven hundred seventy-one".