2500663 has 8 divisors (see below), whose sum is σ = 2739456. Its totient is φ = 2263800.

The previous prime is 2500651. The next prime is 2500669. The reversal of 2500663 is 3660052.

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

It is not a de Polignac number, because 2500663 - 2⁹ = 2500151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2500669) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4848 + ... + 5338.

It is an arithmetic number, because the mean of its divisors is an integer number (342432).

2^2500663 is an apocalyptic number.

2500663 is a deficient number, since it is larger than the sum of its proper divisors (238793).

2500663 is a wasteful number, since it uses less digits than its factorization.

2500663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 965.

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 2500663 is about 1581.3484751945. The cubic root of 2500663 is about 135.7328774952.

The spelling of 2500663 in words is "two million, five hundred thousand, six hundred sixty-three".