66112625 has 16 divisors (see below), whose sum is σ = 83296512. Its totient is φ = 52385200.

The previous prime is 66112621. The next prime is 66112633. The reversal of 66112625 is 52621166.

It is not a de Polignac number, because 66112625 - 2² = 66112621 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (66112621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10904 + ... + 15846.

It is an arithmetic number, because the mean of its divisors is an integer number (5206032).

Almost surely, 2^66112625 is an apocalyptic number.

It is an amenable number.

66112625 is a deficient number, since it is larger than the sum of its proper divisors (17183887).

66112625 is a wasteful number, since it uses less digits than its factorization.

66112625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5065 (or 5055 counting only the distinct ones).

The product of its digits is 4320, while the sum is 29.

The square root of 66112625 is about 8130.9670396577. The cubic root of 66112625 is about 404.3537424714.

The spelling of 66112625 in words is "sixty-six million, one hundred twelve thousand, six hundred twenty-five".