36515575249 has 4 divisors (see below), whose sum is σ = 36877115700. Its totient is φ = 36154034800.

The previous prime is 36515575223. The next prime is 36515575253. The reversal of 36515575249 is 94257551563.

36515575249 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 94257551563 = 7 ⋅13465364509.

It can be written as a sum of positive squares in 2 ways, for example, as 18568150225 + 17947425024 = 136265^2 + 133968^2 .

It is a cyclic number.

It is not a de Polignac number, because 36515575249 - 2⁹ = 36515574737 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 36515575196 and 36515575205.

It is not an unprimeable number, because it can be changed into a prime (36515575849) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 180770074 + ... + 180770275.

It is an arithmetic number, because the mean of its divisors is an integer number (9219278925).

Almost surely, 2^36515575249 is an apocalyptic number.

It is an amenable number.

36515575249 is a deficient number, since it is larger than the sum of its proper divisors (361540451).

36515575249 is a wasteful number, since it uses less digits than its factorization.

36515575249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 361540450.

The product of its digits is 5670000, while the sum is 52.

The spelling of 36515575249 in words is "thirty-six billion, five hundred fifteen million, five hundred seventy-five thousand, two hundred forty-nine".