2490591457 has 2 divisors, whose sum is σ = 2490591458. Its totient is φ = 2490591456.

The previous prime is 2490591451. The next prime is 2490591533. The reversal of 2490591457 is 7541950942.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2386224801 + 104366656 = 48849^2 + 10216^2 .

It is a cyclic number.

It is not a de Polignac number, because 2490591457 - 2⁷ = 2490591329 is a prime.

It is not a weakly prime, because it can be changed into another prime (2490591451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1245295728 + 1245295729.

It is an arithmetic number, because the mean of its divisors is an integer number (1245295729).

Almost surely, 2^2490591457 is an apocalyptic number.

It is an amenable number.

2490591457 is a deficient number, since it is larger than the sum of its proper divisors (1).

2490591457 is an equidigital number, since it uses as much as digits as its factorization.

2490591457 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 453600, while the sum is 46.

The square root of 2490591457 is about 49905.8258823557. The cubic root of 2490591457 is about 1355.5040869887.

The spelling of 2490591457 in words is "two billion, four hundred ninety million, five hundred ninety-one thousand, four hundred fifty-seven".