5721556250 has 48 divisors (see below), whose sum is σ = 10749671352. Its totient is φ = 2283840000.

The previous prime is 5721556249. The next prime is 5721556297. The reversal of 5721556250 is 526551275.

It can be written as a sum of positive squares in 12 ways, for example, as 2715556321 + 3005999929 = 52111^2 + 54827^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5855762 + ... + 5856738.

Almost surely, 2^5721556250 is an apocalyptic number.

5721556250 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

5721556250 is a deficient number, since it is larger than the sum of its proper divisors (5028115102).

5721556250 is an frugal number, since it uses more digits than its factorization.

5721556250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1941 (or 1921 counting only the distinct ones).

The product of its (nonzero) digits is 105000, while the sum is 38.

The square root of 5721556250 is about 75640.9693882885. The cubic root of 5721556250 is about 1788.5649838924.

The spelling of 5721556250 in words is "five billion, seven hundred twenty-one million, five hundred fifty-six thousand, two hundred fifty".