33227640225 has 72 divisors (see below), whose sum is σ = 64451499840. Its totient is φ = 16266579840.

The previous prime is 33227640223. The next prime is 33227640289. The reversal of 33227640225 is 52204672233.

33227640225 is a `hidden beast` number, since 3 + 3 + 2 + 2 + 7 + 640 + 2 + 2 + 5 = 666.

It is not a de Polignac number, because 33227640225 - 2¹ = 33227640223 is a prime.

It is a super-2 number, since 2×33227640225² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 33227640225.

It is not an unprimeable number, because it can be changed into a prime (33227640223) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 491844 + ... + 555306.

It is an arithmetic number, because the mean of its divisors is an integer number (895159720).

Almost surely, 2^33227640225 is an apocalyptic number.

It is an amenable number.

33227640225 is a deficient number, since it is larger than the sum of its proper divisors (31223859615).

33227640225 is a wasteful number, since it uses less digits than its factorization.

33227640225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63671 (or 63663 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 36.

The spelling of 33227640225 in words is "thirty-three billion, two hundred twenty-seven million, six hundred forty thousand, two hundred twenty-five".