5161772200 has 96 divisors (see below), whose sum is σ = 13039399800. Its totient is φ = 1888911360.

The previous prime is 5161772197. The next prime is 5161772219. The reversal of 5161772200 is 22771615.

It can be written as a sum of positive squares in 12 ways, for example, as 1616522436 + 3545249764 = 40206^2 + 59542^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 285016 + ... + 302584.

Almost surely, 2^5161772200 is an apocalyptic number.

5161772200 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5161772200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6519699900).

5161772200 is an abundant number, since it is smaller than the sum of its proper divisors (7877627600).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5161772200 is a wasteful number, since it uses less digits than its factorization.

5161772200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17711 (or 17702 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 31.

The square root of 5161772200 is about 71845.4744573380. The cubic root of 5161772200 is about 1728.2223266823. Note that the first 3 decimals are identical.

The spelling of 5161772200 in words is "five billion, one hundred sixty-one million, seven hundred seventy-two thousand, two hundred".