2530225666 has 4 divisors (see below), whose sum is σ = 3795338502. Its totient is φ = 1265112832.

The previous prime is 2530225657. The next prime is 2530225759. The reversal of 2530225666 is 6665220352.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1690443225 + 839782441 = 41115^2 + 28979^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 632556415 + ... + 632556418.

Almost surely, 2^2530225666 is an apocalyptic number.

2530225666 is a deficient number, since it is larger than the sum of its proper divisors (1265112836).

2530225666 is a wasteful number, since it uses less digits than its factorization.

2530225666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1265112835.

The product of its (nonzero) digits is 129600, while the sum is 37.

The square root of 2530225666 is about 50301.3485505110. The cubic root of 2530225666 is about 1362.6565839287.

The spelling of 2530225666 in words is "two billion, five hundred thirty million, two hundred twenty-five thousand, six hundred sixty-six".