2500300666 has 4 divisors (see below), whose sum is σ = 3750451002. Its totient is φ = 1250150332.

The previous prime is 2500300657. The next prime is 2500300667. The reversal of 2500300666 is 6660030052.

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., 2028151225 + 472149441 = 45035^2 + 21729^2 .

It is not an unprimeable number, because it can be changed into a prime (2500300667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 625075165 + ... + 625075168.

Almost surely, 2^2500300666 is an apocalyptic number.

2500300666 is a deficient number, since it is larger than the sum of its proper divisors (1250150336).

2500300666 is a wasteful number, since it uses less digits than its factorization.

2500300666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1250150335.

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 2500300666 is about 50003.0065696054. The cubic root of 2500300666 is about 1357.2632149889.

It can be divided in two parts, 2500300 and 666, that added together give a triangular number (2500966 = T₂₂₃₆).

The spelling of 2500300666 in words is "two billion, five hundred million, three hundred thousand, six hundred sixty-six".