551161799 has 4 divisors (see below), whose sum is σ = 552141336. Its totient is φ = 550182264.

The previous prime is 551161789. The next prime is 551161801. The reversal of 551161799 is 997161155.

551161799 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 551161799 - 2⁴ = 551161783 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 (551161769) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 488924 + ... + 490049.

It is an arithmetic number, because the mean of its divisors is an integer number (138035334).

Almost surely, 2^551161799 is an apocalyptic number.

551161799 is a deficient number, since it is larger than the sum of its proper divisors (979537).

551161799 is an equidigital number, since it uses as much as digits as its factorization.

551161799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 979536.

The product of its digits is 85050, while the sum is 44.

The square root of 551161799 is about 23476.8353702112. The cubic root of 551161799 is about 819.8977658584.

The spelling of 551161799 in words is "five hundred fifty-one million, one hundred sixty-one thousand, seven hundred ninety-nine".