2497241657 has 2 divisors, whose sum is σ = 2497241658. Its totient is φ = 2497241656.

The previous prime is 2497241633. The next prime is 2497241689. The reversal of 2497241657 is 7561427942.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1742311081 + 754930576 = 41741^2 + 27476^2 .

It is a cyclic number.

It is not a de Polignac number, because 2497241657 - 2¹⁰ = 2497240633 is a prime.

It is a super-3 number, since 3×2497241657³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (2497241627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1248620828 + 1248620829.

It is an arithmetic number, because the mean of its divisors is an integer number (1248620829).

Almost surely, 2^2497241657 is an apocalyptic number.

It is an amenable number.

2497241657 is a deficient number, since it is larger than the sum of its proper divisors (1).

2497241657 is an equidigital number, since it uses as much as digits as its factorization.

2497241657 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 846720, while the sum is 47.

The square root of 2497241657 is about 49972.4089573437. The cubic root of 2497241657 is about 1356.7094716180.

The spelling of 2497241657 in words is "two billion, four hundred ninety-seven million, two hundred forty-one thousand, six hundred fifty-seven".