66252325 has 6 divisors (see below), whose sum is σ = 82152914. Its totient is φ = 53001840.

The previous prime is 66252317. The next prime is 66252337. The reversal of 66252325 is 52325266.

It can be written as a sum of positive squares in 3 ways, for example, as 25281 + 66227044 = 159^2 + 8138^2 .

It is not a de Polignac number, because 66252325 - 2³ = 66252317 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1325022 + ... + 1325071.

Almost surely, 2^66252325 is an apocalyptic number.

It is an amenable number.

66252325 is a deficient number, since it is larger than the sum of its proper divisors (15900589).

66252325 is a wasteful number, since it uses less digits than its factorization.

66252325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2650103 (or 2650098 counting only the distinct ones).

The product of its digits is 21600, while the sum is 31.

The square root of 66252325 is about 8139.5531204115. The cubic root of 66252325 is about 404.6383501228.

The spelling of 66252325 in words is "sixty-six million, two hundred fifty-two thousand, three hundred twenty-five".