66028252 has 6 divisors (see below), whose sum is σ = 115549448. Its totient is φ = 33014124.

The previous prime is 66028241. The next prime is 66028271. The reversal of 66028252 is 25282066.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8253528 + ... + 8253535.

Almost surely, 2^66028252 is an apocalyptic number.

It is an amenable number.

66028252 is a deficient number, since it is larger than the sum of its proper divisors (49521196).

66028252 is a wasteful number, since it uses less digits than its factorization.

66028252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16507067 (or 16507065 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 66028252 is about 8125.7770090004. Note that the first 3 decimals coincide. The cubic root of 66028252 is about 404.1816570248.

The spelling of 66028252 in words is "sixty-six million, twenty-eight thousand, two hundred fifty-two".