66225355 has 32 divisors (see below), whose sum is σ = 97459200. Its totient is φ = 42187392.

The previous prime is 66225337. The next prime is 66225359. The reversal of 66225355 is 55352266.

It is a cyclic number.

It is not a de Polignac number, because 66225355 - 2¹¹ = 66223307 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 66225355.

It is not an unprimeable number, because it can be changed into a prime (66225359) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34306 + ... + 36184.

It is an arithmetic number, because the mean of its divisors is an integer number (3045600).

Almost surely, 2^66225355 is an apocalyptic number.

66225355 is a deficient number, since it is larger than the sum of its proper divisors (31233845).

66225355 is a wasteful number, since it uses less digits than its factorization.

66225355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1963.

The product of its digits is 54000, while the sum is 34.

The square root of 66225355 is about 8137.8962269127. The cubic root of 66225355 is about 404.5834359369.

The spelling of 66225355 in words is "sixty-six million, two hundred twenty-five thousand, three hundred fifty-five".