2500591 has 2 divisors, whose sum is σ = 2500592. Its totient is φ = 2500590.

The previous prime is 2500559. The next prime is 2500601. The reversal of 2500591 is 1950052.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2500591 - 2⁵ = 2500559 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2500891) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1250295 + 1250296.

It is an arithmetic number, because the mean of its divisors is an integer number (1250296).

2^2500591 is an apocalyptic number.

2500591 is a deficient number, since it is larger than the sum of its proper divisors (1).

2500591 is an equidigital number, since it uses as much as digits as its factorization.

2500591 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 450, while the sum is 22.

The square root of 2500591 is about 1581.3257096500. The cubic root of 2500591 is about 135.7315747925.

The spelling of 2500591 in words is "two million, five hundred thousand, five hundred ninety-one".