2508481 has 2 divisors, whose sum is σ = 2508482. Its totient is φ = 2508480.

The previous prime is 2508433. The next prime is 2508511. The reversal of 2508481 is 1848052.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1476225 + 1032256 = 1215^2 + 1016^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2508481 is a prime.

It is a super-2 number, since 2×2508481² = 12584953854722, which contains 22 as substring.

It is a Chen prime.

2508481 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (2508281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1254240 + 1254241.

It is an arithmetic number, because the mean of its divisors is an integer number (1254241).

2^2508481 is an apocalyptic number.

It is an amenable number.

2508481 is a deficient number, since it is larger than the sum of its proper divisors (1).

2508481 is an equidigital number, since it uses as much as digits as its factorization.

2508481 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2560, while the sum is 28.

The square root of 2508481 is about 1583.8184870748. The cubic root of 2508481 is about 135.8741807807.

The spelling of 2508481 in words is "two million, five hundred eight thousand, four hundred eighty-one".