5551499651 has 8 divisors (see below), whose sum is σ = 5974421184. Its totient is φ = 5139285120.

The previous prime is 5551499599. The next prime is 5551499669. The reversal of 5551499651 is 1569941555.

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 5551499651 - 2¹⁰ = 5551498627 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 5551499651.

It is not an unprimeable number, because it can be changed into a prime (5551499851) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2675675 + ... + 2677748.

It is an arithmetic number, because the mean of its divisors is an integer number (746802648).

Almost surely, 2^5551499651 is an apocalyptic number.

5551499651 is a deficient number, since it is larger than the sum of its proper divisors (422921533).

5551499651 is a wasteful number, since it uses less digits than its factorization.

5551499651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5353501.

The product of its digits is 1215000, while the sum is 50.

The square root of 5551499651 is about 74508.3864474329. The cubic root of 5551499651 is about 1770.6665062019. Note that the first 3 decimals are identical.

The spelling of 5551499651 in words is "five billion, five hundred fifty-one million, four hundred ninety-nine thousand, six hundred fifty-one".