2500999 has 2 divisors, whose sum is σ = 2501000. Its totient is φ = 2500998.

The previous prime is 2500973. The next prime is 2501003. The reversal of 2500999 is 9990052.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2500999 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2500919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1250499 + 1250500.

It is an arithmetic number, because the mean of its divisors is an integer number (1250500).

2^2500999 is an apocalyptic number.

2500999 is a deficient number, since it is larger than the sum of its proper divisors (1).

2500999 is an equidigital number, since it uses as much as digits as its factorization.

2500999 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7290, while the sum is 34.

The square root of 2500999 is about 1581.4547100692. The cubic root of 2500999 is about 135.7389564436.

The spelling of 2500999 in words is "two million, five hundred thousand, nine hundred ninety-nine".