5236897581 has 24 divisors (see below), whose sum is σ = 7596763200. Its totient is φ = 3476368896.

The previous prime is 5236897573. The next prime is 5236897613. The reversal of 5236897581 is 1857986325.

5236897581 is a `hidden beast` number, since 52 + 3 + 6 + 8 + 9 + 7 + 581 = 666.

It is not a de Polignac number, because 5236897581 - 2³ = 5236897573 is a prime.

It is a super-2 number, since 2×5236897581² = 54850192547767303122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5236897681) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2613526 + ... + 2615528.

It is an arithmetic number, because the mean of its divisors is an integer number (316531800).

Almost surely, 2^5236897581 is an apocalyptic number.

It is an amenable number.

5236897581 is a deficient number, since it is larger than the sum of its proper divisors (2359865619).

5236897581 is a wasteful number, since it uses less digits than its factorization.

5236897581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3105 (or 3102 counting only the distinct ones).

The product of its digits is 3628800, while the sum is 54.

The square root of 5236897581 is about 72366.4119671550. The cubic root of 5236897581 is about 1736.5662653477.

The spelling of 5236897581 in words is "five billion, two hundred thirty-six million, eight hundred ninety-seven thousand, five hundred eighty-one".