66576125 has 32 divisors (see below), whose sum is σ = 103603968. Its totient is φ = 41496000.

The previous prime is 66576121. The next prime is 66576137. The reversal of 66576125 is 52167566.

It is not a de Polignac number, because 66576125 - 2² = 66576121 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 (66576121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6167 + ... + 13083.

It is an arithmetic number, because the mean of its divisors is an integer number (3237624).

Almost surely, 2^66576125 is an apocalyptic number.

It is an amenable number.

66576125 is a deficient number, since it is larger than the sum of its proper divisors (37027843).

66576125 is a wasteful number, since it uses less digits than its factorization.

66576125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6950 (or 6940 counting only the distinct ones).

The product of its digits is 75600, while the sum is 38.

The square root of 66576125 is about 8159.4194033644. The cubic root of 66576125 is about 405.2964856392.

The spelling of 66576125 in words is "sixty-six million, five hundred seventy-six thousand, one hundred twenty-five".