2497796545 has 4 divisors (see below), whose sum is σ = 2997355860. Its totient is φ = 1998237232.

The previous prime is 2497796533. The next prime is 2497796611. The reversal of 2497796545 is 5456977942.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 731107521 + 1766689024 = 27039^2 + 42032^2 .

It is a cyclic number.

It is not a de Polignac number, because 2497796545 - 2⁹ = 2497796033 is a prime.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 2497796545.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 249779650 + ... + 249779659.

It is an arithmetic number, because the mean of its divisors is an integer number (749338965).

Almost surely, 2^2497796545 is an apocalyptic number.

It is an amenable number.

2497796545 is a deficient number, since it is larger than the sum of its proper divisors (499559315).

2497796545 is an equidigital number, since it uses as much as digits as its factorization.

2497796545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 499559314.

The product of its digits is 19051200, while the sum is 58.

The square root of 2497796545 is about 49977.9605926452. The cubic root of 2497796545 is about 1356.8099512881.

The spelling of 2497796545 in words is "two billion, four hundred ninety-seven million, seven hundred ninety-six thousand, five hundred forty-five".