2545768242 has 12 divisors (see below), whose sum is σ = 5515831230. Its totient is φ = 848589408.

The previous prime is 2545768229. The next prime is 2545768249. The reversal of 2545768242 is 2428675452.

2545768242 is a `hidden beast` number, since 2 + 54 + 576 + 8 + 24 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2045843361 + 499924881 = 45231^2 + 22359^2 .

It is not an unprimeable number, because it can be changed into a prime (2545768249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 70715767 + ... + 70715802.

Almost surely, 2^2545768242 is an apocalyptic number.

2545768242 is an abundant number, since it is smaller than the sum of its proper divisors (2970062988).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2545768242 is a wasteful number, since it uses less digits than its factorization.

2545768242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141431577 (or 141431574 counting only the distinct ones).

The product of its digits is 1075200, while the sum is 45.

The square root of 2545768242 is about 50455.6066458426. The cubic root of 2545768242 is about 1365.4410489586.

The spelling of 2545768242 in words is "two billion, five hundred forty-five million, seven hundred sixty-eight thousand, two hundred forty-two".