5547215861 has 8 divisors (see below), whose sum is σ = 6215062944. Its totient is φ = 4906627920.

The previous prime is 5547215833. The next prime is 5547215893. The reversal of 5547215861 is 1685127455.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5547215861 - 2³⁰ = 4473474037 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 (5547245861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6814355 + ... + 6815168.

It is an arithmetic number, because the mean of its divisors is an integer number (776882868).

Almost surely, 2^5547215861 is an apocalyptic number.

It is an amenable number.

5547215861 is a deficient number, since it is larger than the sum of its proper divisors (667847083).

5547215861 is a wasteful number, since it uses less digits than its factorization.

5547215861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13629571.

The product of its digits is 336000, while the sum is 44.

The square root of 5547215861 is about 74479.6338672526. The cubic root of 5547215861 is about 1770.2109466951.

The spelling of 5547215861 in words is "five billion, five hundred forty-seven million, two hundred fifteen thousand, eight hundred sixty-one".