64132225 has 6 divisors (see below), whose sum is σ = 79523990. Its totient is φ = 51305760.

The previous prime is 64132223. The next prime is 64132231. The reversal of 64132225 is 52223146.

It can be written as a sum of positive squares in 3 ways, for example, as 627264 + 63504961 = 792^2 + 7969^2 .

It is not a de Polignac number, because 64132225 - 2¹ = 64132223 is a prime.

It is a super-2 number, since 2×64132225² = 8225884566901250, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25), and also a Moran number because the ratio is a prime number: 2565289 = 64132225 / (6 + 4 + 1 + 3 + 2 + 2 + 2 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 64132225.

It is not an unprimeable number, because it can be changed into a prime (64132223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1282620 + ... + 1282669.

Almost surely, 2^64132225 is an apocalyptic number.

It is an amenable number.

64132225 is a deficient number, since it is larger than the sum of its proper divisors (15391765).

64132225 is a wasteful number, since it uses less digits than its factorization.

64132225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2565299 (or 2565294 counting only the distinct ones).

The product of its digits is 2880, while the sum is 25.

The square root of 64132225 is about 8008.2597984831. The cubic root of 64132225 is about 400.2752792599.

The spelling of 64132225 in words is "sixty-four million, one hundred thirty-two thousand, two hundred twenty-five".