30825666 has 24 divisors (see below), whose sum is σ = 69093180. Its totient is φ = 9920736.

The previous prime is 30825661. The next prime is 30825677. The reversal of 30825666 is 66652803.

It can be written as a sum of positive squares in 2 ways, for example, as 26224641 + 4601025 = 5121^2 + 2145^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 30825666.

It is not an unprimeable number, because it can be changed into a prime (30825661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29005 + ... + 30048.

Almost surely, 2^30825666 is an apocalyptic number.

30825666 is an abundant number, since it is smaller than the sum of its proper divisors (38267514).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30825666 is a wasteful number, since it uses less digits than its factorization.

30825666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59090 (or 59087 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 30825666 is about 5552.0866347708. The cubic root of 30825666 is about 313.5480875237.

The spelling of 30825666 in words is "thirty million, eight hundred twenty-five thousand, six hundred sixty-six".