2497693853 has 4 divisors (see below), whose sum is σ = 2510372700. Its totient is φ = 2485015008.

The previous prime is 2497693841. The next prime is 2497693889. The reversal of 2497693853 is 3583967942.

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 2023020484 + 474673369 = 44978^2 + 21787^2 .

It is a cyclic number.

It is not a de Polignac number, because 2497693853 - 2²⁸ = 2229258397 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2497393853) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6339128 + ... + 6339521.

It is an arithmetic number, because the mean of its divisors is an integer number (627593175).

Almost surely, 2^2497693853 is an apocalyptic number.

It is an amenable number.

2497693853 is a deficient number, since it is larger than the sum of its proper divisors (12678847).

2497693853 is a wasteful number, since it uses less digits than its factorization.

2497693853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12678846.

The product of its digits is 9797760, while the sum is 56.

The square root of 2497693853 is about 49976.9332092316. The cubic root of 2497693853 is about 1356.7913568410.

The spelling of 2497693853 in words is "two billion, four hundred ninety-seven million, six hundred ninety-three thousand, eight hundred fifty-three".