66233725 has 12 divisors (see below), whose sum is σ = 82316160. Its totient is φ = 52866800.

The previous prime is 66233723. The next prime is 66233771. The reversal of 66233725 is 52733266.

It is not a de Polignac number, because 66233725 - 2¹ = 66233723 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66233723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9210 + ... + 14740.

It is an arithmetic number, because the mean of its divisors is an integer number (6859680).

Almost surely, 2^66233725 is an apocalyptic number.

It is an amenable number.

66233725 is a deficient number, since it is larger than the sum of its proper divisors (16082435).

66233725 is a wasteful number, since it uses less digits than its factorization.

66233725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6020 (or 6015 counting only the distinct ones).

The product of its digits is 45360, while the sum is 34.

The square root of 66233725 is about 8138.4104713390. The cubic root of 66233725 is about 404.6004798657.

The spelling of 66233725 in words is "sixty-six million, two hundred thirty-three thousand, seven hundred twenty-five".