2507456491 has 2 divisors, whose sum is σ = 2507456492. Its totient is φ = 2507456490.

The previous prime is 2507456443. The next prime is 2507456507. The reversal of 2507456491 is 1946547052.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2507456491 - 2¹⁹ = 2506932203 is a prime.

It is not a weakly prime, because it can be changed into another prime (2507456591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1253728245 + 1253728246.

It is an arithmetic number, because the mean of its divisors is an integer number (1253728246).

Almost surely, 2^2507456491 is an apocalyptic number.

2507456491 is a deficient number, since it is larger than the sum of its proper divisors (1).

2507456491 is an equidigital number, since it uses as much as digits as its factorization.

2507456491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 302400, while the sum is 43.

The square root of 2507456491 is about 50074.5093935028. The cubic root of 2507456491 is about 1358.5568043769.

The spelling of 2507456491 in words is "two billion, five hundred seven million, four hundred fifty-six thousand, four hundred ninety-one".