66875248 has 30 divisors (see below), whose sum is σ = 142424912. Its totient is φ = 30396960.

The previous prime is 66875239. The next prime is 66875251. The reversal of 66875248 is 84257866.

It is a junction number, because it is equal to n+sod(n) for n = 66875198 and 66875207.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 15336 + ... + 19207.

Almost surely, 2^66875248 is an apocalyptic number.

It is an amenable number.

66875248 is an abundant number, since it is smaller than the sum of its proper divisors (75549664).

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

66875248 is a wasteful number, since it uses less digits than its factorization.

66875248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34573 (or 34556 counting only the distinct ones).

The product of its digits is 645120, while the sum is 46.

The square root of 66875248 is about 8177.7287800465. The cubic root of 66875248 is about 405.9025707149.

It can be divided in two parts, 6687 and 5248, that added together give a triangular number (11935 = T₁₅₄).

The spelling of 66875248 in words is "sixty-six million, eight hundred seventy-five thousand, two hundred forty-eight".