2530533666 has 8 divisors (see below), whose sum is σ = 5061067344. Its totient is φ = 843511220.

The previous prime is 2530533641. The next prime is 2530533671. The reversal of 2530533666 is 6663350352.

It is a sphenic number, since it is the product of 3 distinct primes.

2530533666 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 210877800 + ... + 210877811.

It is an arithmetic number, because the mean of its divisors is an integer number (632633418).

Almost surely, 2^2530533666 is an apocalyptic number.

2530533666 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2530533666 is a wasteful number, since it uses less digits than its factorization.

2530533666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 421755616.

The product of its (nonzero) digits is 291600, while the sum is 39.

The square root of 2530533666 is about 50304.4100054856. The cubic root of 2530533666 is about 1362.7118729628.

The spelling of 2530533666 in words is "two billion, five hundred thirty million, five hundred thirty-three thousand, six hundred sixty-six".