66256075 has 12 divisors (see below), whose sum is σ = 82358320. Its totient is φ = 52875360.

The previous prime is 66256049. The next prime is 66256093. The reversal of 66256075 is 57065266.

It is not a de Polignac number, because 66256075 - 2¹⁵ = 66223307 is a prime.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7957 + ... + 13993.

Almost surely, 2^66256075 is an apocalyptic number.

66256075 is a deficient number, since it is larger than the sum of its proper divisors (16102245).

66256075 is a wasteful number, since it uses less digits than its factorization.

66256075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6486 (or 6481 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 37.

The square root of 66256075 is about 8139.7834737786. The cubic root of 66256075 is about 404.6459843967.

The spelling of 66256075 in words is "sixty-six million, two hundred fifty-six thousand, seventy-five".