2516491 has 2 divisors, whose sum is σ = 2516492. Its totient is φ = 2516490.

The previous prime is 2516473. The next prime is 2516497. The reversal of 2516491 is 1946152.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2516491 - 2¹⁹ = 1992203 is a prime.

It is not a weakly prime, because it can be changed into another prime (2516497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1258245 + 1258246.

It is an arithmetic number, because the mean of its divisors is an integer number (1258246).

2^2516491 is an apocalyptic number.

2516491 is a deficient number, since it is larger than the sum of its proper divisors (1).

2516491 is an equidigital number, since it uses as much as digits as its factorization.

2516491 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2160, while the sum is 28.

The square root of 2516491 is about 1586.3451705099. The cubic root of 2516491 is about 136.0186501240.

The spelling of 2516491 in words is "two million, five hundred sixteen thousand, four hundred ninety-one".