2499443497 has 4 divisors (see below), whose sum is σ = 2521562580. Its totient is φ = 2477324416.

The previous prime is 2499443461. The next prime is 2499443537. The reversal of 2499443497 is 7943449942.

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 1196883216 + 1302560281 = 34596^2 + 36091^2 .

It is a cyclic number.

It is not a de Polignac number, because 2499443497 - 2¹¹ = 2499441449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2499443437) 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, 11059372 + ... + 11059597.

It is an arithmetic number, because the mean of its divisors is an integer number (630390645).

Almost surely, 2^2499443497 is an apocalyptic number.

It is an amenable number.

2499443497 is a deficient number, since it is larger than the sum of its proper divisors (22119083).

2499443497 is a wasteful number, since it uses less digits than its factorization.

2499443497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22119082.

The product of its digits is 7838208, while the sum is 55.

The square root of 2499443497 is about 49994.4346602699. The cubic root of 2499443497 is about 1357.1080953877.

The spelling of 2499443497 in words is "two billion, four hundred ninety-nine million, four hundred forty-three thousand, four hundred ninety-seven".