64733225 has 12 divisors (see below), whose sum is σ = 80620956. Its totient is φ = 51559680.

The previous prime is 64733213. The next prime is 64733231. The reversal of 64733225 is 52233746.

64733225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 24334489 + 40398736 = 4933^2 + 6356^2 .

It is not a de Polignac number, because 64733225 - 2¹² = 64729129 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 64733191 and 64733200.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 269 + ... + 11381.

It is an arithmetic number, because the mean of its divisors is an integer number (6718413).

Almost surely, 2^64733225 is an apocalyptic number.

It is an amenable number.

64733225 is a deficient number, since it is larger than the sum of its proper divisors (15887731).

64733225 is a wasteful number, since it uses less digits than its factorization.

64733225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11356 (or 11351 counting only the distinct ones).

The product of its digits is 30240, while the sum is 32.

The square root of 64733225 is about 8045.6960544132. The cubic root of 64733225 is about 401.5217553930.

The spelling of 64733225 in words is "sixty-four million, seven hundred thirty-three thousand, two hundred twenty-five".