5781625369 has 9 divisors (see below), whose sum is σ = 6261647133. Its totient is φ = 5335972512.

The previous prime is 5781625361. The next prime is 5781625393. The reversal of 5781625369 is 9635261875.

The square root of 5781625369 is 76037.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 1610015625 + 4171609744 = 40125^2 + 64588^2 .

It is not a de Polignac number, because 5781625369 - 2³ = 5781625361 is a prime.

It is a super-2 number, since 2×5781625369² = 66854383814928772322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5781625361) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 985557 + ... + 991405.

Almost surely, 2^5781625369 is an apocalyptic number.

5781625369 is the 76037-th square number.

5781625369 is the 38019-th centered octagonal number.

It is an amenable number.

5781625369 is a deficient number, since it is larger than the sum of its proper divisors (480021764).

5781625369 is an frugal number, since it uses more digits than its factorization.

5781625369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11724 (or 5862 counting only the distinct ones).

The product of its digits is 2721600, while the sum is 52.

The cubic root of 5781625369 is about 1794.8024310604.

The spelling of 5781625369 in words is "five billion, seven hundred eighty-one million, six hundred twenty-five thousand, three hundred sixty-nine".