66025301 has 4 divisors (see below), whose sum is σ = 66141504. Its totient is φ = 65909100.

The previous prime is 66025291. The next prime is 66025303. The reversal of 66025301 is 10352066.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-66025301 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66025303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57245 + ... + 58386.

It is an arithmetic number, because the mean of its divisors is an integer number (16535376).

Almost surely, 2^66025301 is an apocalyptic number.

It is an amenable number.

66025301 is a deficient number, since it is larger than the sum of its proper divisors (116203).

66025301 is a wasteful number, since it uses less digits than its factorization.

66025301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116202.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 66025301 is about 8125.5954243366. The cubic root of 66025301 is about 404.1756355729.

Adding to 66025301 its reverse (10352066), we get a palindrome (76377367).

The spelling of 66025301 in words is "sixty-six million, twenty-five thousand, three hundred one".