5725566388 has 12 divisors (see below), whose sum is σ = 10111666180. Its totient is φ = 2836518912.

The previous prime is 5725566313. The next prime is 5725566397. The reversal of 5725566388 is 8836655275.

It can be written as a sum of positive squares in 2 ways, for example, as 3454853284 + 2270713104 = 58778^2 + 47652^2 .

It is a super-2 number, since 2×5725566388² = 65564220926790733088, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6565581 + ... + 6566452.

Almost surely, 2^5725566388 is an apocalyptic number.

It is an amenable number.

5725566388 is a deficient number, since it is larger than the sum of its proper divisors (4386099792).

5725566388 is a wasteful number, since it uses less digits than its factorization.

5725566388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13132146 (or 13132144 counting only the distinct ones).

The product of its digits is 12096000, while the sum is 55.

The square root of 5725566388 is about 75667.4724567961. The cubic root of 5725566388 is about 1788.9827442055.

The spelling of 5725566388 in words is "five billion, seven hundred twenty-five million, five hundred sixty-six thousand, three hundred eighty-eight".