66502256 has 20 divisors (see below), whose sum is σ = 130403112. Its totient is φ = 32849856.

The previous prime is 66502253. The next prime is 66502277. The reversal of 66502256 is 65220566.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66502253) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 23711 + ... + 26366.

Almost surely, 2^66502256 is an apocalyptic number.

It is an amenable number.

66502256 is a deficient number, since it is larger than the sum of its proper divisors (63900856).

66502256 is a wasteful number, since it uses less digits than its factorization.

66502256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50168 (or 50162 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 32.

The square root of 66502256 is about 8154.8915382119. The cubic root of 66502256 is about 405.1465323552.

The spelling of 66502256 in words is "sixty-six million, five hundred two thousand, two hundred fifty-six".