64584598225 has 81 divisors (see below), whose sum is σ = 95649019347. Its totient is φ = 43133825280.

The previous prime is 64584598217. The next prime is 64584598237. The reversal of 64584598225 is 52289548546.

The square root of 64584598225 is 254135.

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

It can be written as a sum of positive squares in 13 ways, for example, as 21234026961 + 43350571264 = 145719^2 + 208208^2 .

It is not a de Polignac number, because 64584598225 - 2³ = 64584598217 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 64584598225.

It is an unprimeable number.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 471420357 + ... + 471420493.

Almost surely, 2^64584598225 is an apocalyptic number.

64584598225 is the 254135-th square number.

64584598225 is the 127068-th centered octagonal number.

It is an amenable number.

64584598225 is a deficient number, since it is larger than the sum of its proper divisors (31064421122).

64584598225 is an equidigital number, since it uses as much as digits as its factorization.

64584598225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404 (or 202 counting only the distinct ones).

The product of its digits is 27648000, while the sum is 58.

The spelling of 64584598225 in words is "sixty-four billion, five hundred eighty-four million, five hundred ninety-eight thousand, two hundred twenty-five".