2506291 has 2 divisors, whose sum is σ = 2506292. Its totient is φ = 2506290.

The previous prime is 2506279. The next prime is 2506313. The reversal of 2506291 is 1926052.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2506291 - 2⁹ = 2505779 is a prime.

It is not a weakly prime, because it can be changed into another prime (2506201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1253145 + 1253146.

It is an arithmetic number, because the mean of its divisors is an integer number (1253146).

2^2506291 is an apocalyptic number.

2506291 is a deficient number, since it is larger than the sum of its proper divisors (1).

2506291 is an equidigital number, since it uses as much as digits as its factorization.

2506291 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 2506291 is about 1583.1269690079. The cubic root of 2506291 is about 135.8346281466.

The spelling of 2506291 in words is "two million, five hundred six thousand, two hundred ninety-one".