66875256 has 48 divisors (see below), whose sum is σ = 206996400. Its totient is φ = 19107072.

The previous prime is 66875251. The next prime is 66875287. The reversal of 66875256 is 65257866.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66875251) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 65841 + ... + 66848.

It is an arithmetic number, because the mean of its divisors is an integer number (4312425).

Almost surely, 2^66875256 is an apocalyptic number.

It is an amenable number.

66875256 is an abundant number, since it is smaller than the sum of its proper divisors (140121144).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66875256 is a wasteful number, since it uses less digits than its factorization.

66875256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132708 (or 132701 counting only the distinct ones).

The product of its digits is 604800, while the sum is 45.

The square root of 66875256 is about 8177.7292691798. The cubic root of 66875256 is about 405.9025869004.

The spelling of 66875256 in words is "sixty-six million, eight hundred seventy-five thousand, two hundred fifty-six".