5546681257 has 8 divisors (see below), whose sum is σ = 6034931336. Its totient is φ = 5067228672.

The previous prime is 5546681251. The next prime is 5546681263. The reversal of 5546681257 is 7521866455.

It is an interprime number because it is at equal distance from previous prime (5546681251) and next prime (5546681263).

It can be written as a sum of positive squares in 4 ways, for example, as 627201936 + 4919479321 = 25044^2 + 70139^2 .

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 5546681257 - 2³¹ = 3399197609 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5546681257.

It is not an unprimeable number, because it can be changed into a prime (5546681251) 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 7 ways as a sum of consecutive naturals, for example, 2198058 + ... + 2200579.

It is an arithmetic number, because the mean of its divisors is an integer number (754366417).

Almost surely, 2^5546681257 is an apocalyptic number.

It is an amenable number.

5546681257 is a deficient number, since it is larger than the sum of its proper divisors (488250079).

5546681257 is a wasteful number, since it uses less digits than its factorization.

5546681257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4398747.

The product of its digits is 2016000, while the sum is 49.

The square root of 5546681257 is about 74476.0448533621. The cubic root of 5546681257 is about 1770.1540777913.

The spelling of 5546681257 in words is "five billion, five hundred forty-six million, six hundred eighty-one thousand, two hundred fifty-seven".