66752925 has 48 divisors (see below), whose sum is σ = 116778240. Its totient is φ = 33591040.

The previous prime is 66752911. The next prime is 66752927. The reversal of 66752925 is 52925766.

It is not a de Polignac number, because 66752925 - 2⁵ = 66752893 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66752927) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 101899 + ... + 102551.

It is an arithmetic number, because the mean of its divisors is an integer number (2432880).

Almost surely, 2^66752925 is an apocalyptic number.

It is an amenable number.

66752925 is a deficient number, since it is larger than the sum of its proper divisors (50025315).

66752925 is a wasteful number, since it uses less digits than its factorization.

66752925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 742 (or 737 counting only the distinct ones).

The product of its digits is 226800, while the sum is 42.

The square root of 66752925 is about 8170.2463243161. The cubic root of 66752925 is about 405.6549378704.

The spelling of 66752925 in words is "sixty-six million, seven hundred fifty-two thousand, nine hundred twenty-five".