2542576388 has 36 divisors (see below), whose sum is σ = 4934169660. Its totient is φ = 1145464320.

The previous prime is 2542576307. The next prime is 2542576391. The reversal of 2542576388 is 8836752452.

It can be written as a sum of positive squares in 2 ways, for example, as 406103104 + 2136473284 = 20152^2 + 46222^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31448 + ... + 77936.

Almost surely, 2^2542576388 is an apocalyptic number.

It is an amenable number.

2542576388 is a deficient number, since it is larger than the sum of its proper divisors (2391593272).

2542576388 is a wasteful number, since it uses less digits than its factorization.

2542576388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46628 (or 46615 counting only the distinct ones).

The product of its digits is 3225600, while the sum is 50.

The square root of 2542576388 is about 50423.9664048754. The cubic root of 2542576388 is about 1364.8701523718.

It can be divided in two parts, 25425 and 76388, that multiplied together give a square (1942164900 = 44070²).

The spelling of 2542576388 in words is "two billion, five hundred forty-two million, five hundred seventy-six thousand, three hundred eighty-eight".