2504891 has 2 divisors, whose sum is σ = 2504892. Its totient is φ = 2504890.

The previous prime is 2504881. The next prime is 2504917. The reversal of 2504891 is 1984052.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2504891 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2504881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1252445 + 1252446.

It is an arithmetic number, because the mean of its divisors is an integer number (1252446).

2^2504891 is an apocalyptic number.

2504891 is a deficient number, since it is larger than the sum of its proper divisors (1).

2504891 is an equidigital number, since it uses as much as digits as its factorization.

2504891 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 2504891 is about 1582.6847443506. The cubic root of 2504891 is about 135.8093312837.

The spelling of 2504891 in words is "two million, five hundred four thousand, eight hundred ninety-one".