66025827 has 16 divisors (see below), whose sum is σ = 111790080. Its totient is φ = 37728936.

The previous prime is 66025823. The next prime is 66025829. The reversal of 66025827 is 72852066.

It is not a de Polignac number, because 66025827 - 2² = 66025823 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 66025791 and 66025800.

It is not an unprimeable number, because it can be changed into a prime (66025823) 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, 174483 + ... + 174860.

It is an arithmetic number, because the mean of its divisors is an integer number (6986880).

Almost surely, 2^66025827 is an apocalyptic number.

66025827 is a deficient number, since it is larger than the sum of its proper divisors (45764253).

66025827 is a wasteful number, since it uses less digits than its factorization.

66025827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349359 (or 349353 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 66025827 is about 8125.6277911310. The cubic root of 66025827 is about 404.1767088777.

The spelling of 66025827 in words is "sixty-six million, twenty-five thousand, eight hundred twenty-seven".