2542608349 has 4 divisors (see below), whose sum is σ = 2692173564. Its totient is φ = 2393043136.

The previous prime is 2542608331. The next prime is 2542608359. The reversal of 2542608349 is 9438062452.

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 2112045849 + 430562500 = 45957^2 + 20750^2 .

It is a cyclic number.

It is not a de Polignac number, because 2542608349 - 2⁷ = 2542608221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2542608319) 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, 74782582 + ... + 74782615.

It is an arithmetic number, because the mean of its divisors is an integer number (673043391).

Almost surely, 2^2542608349 is an apocalyptic number.

It is an amenable number.

2542608349 is a deficient number, since it is larger than the sum of its proper divisors (149565215).

2542608349 is a wasteful number, since it uses less digits than its factorization.

2542608349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149565214.

The product of its (nonzero) digits is 414720, while the sum is 43.

The square root of 2542608349 is about 50424.2833265878. The cubic root of 2542608349 is about 1364.8758712996.

The spelling of 2542608349 in words is "two billion, five hundred forty-two million, six hundred eight thousand, three hundred forty-nine".