36647359225 has 9 divisors (see below), whose sum is σ = 45443912367. Its totient is φ = 29317121640.

The previous prime is 36647359207. The next prime is 36647359279. The reversal of 36647359225 is 52295374663.

The square root of 36647359225 is 191435.

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

It can be written as a sum of positive squares in only one way, i.e., 13193049321 + 23454309904 = 114861^2 + 153148^2 .

It is a de Polignac number, because none of the positive numbers 2^k-36647359225 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 938032 + ... + 976318.

Almost surely, 2^36647359225 is an apocalyptic number.

36647359225 is the 191435-th square number.

36647359225 is the 95718-th centered octagonal number.

It is an amenable number.

36647359225 is a deficient number, since it is larger than the sum of its proper divisors (8796553142).

36647359225 is an frugal number, since it uses more digits than its factorization.

36647359225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76584 (or 38292 counting only the distinct ones).

The product of its digits is 8164800, while the sum is 52.

The spelling of 36647359225 in words is "thirty-six billion, six hundred forty-seven million, three hundred fifty-nine thousand, two hundred twenty-five".