2544514505242 has 4 divisors (see below), whose sum is σ = 3816771757866. Its totient is φ = 1272257252620.

The previous prime is 2544514505237. The next prime is 2544514505249. The reversal of 2544514505242 is 2425054154452.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1603340945361 + 941173559881 = 1266231^2 + 970141^2 .

It is not an unprimeable number, because it can be changed into a prime (2544514505249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 636128626309 + ... + 636128626312.

Almost surely, 2^{2544514505242} is an apocalyptic number.

2544514505242 is a deficient number, since it is larger than the sum of its proper divisors (1272257252624).

2544514505242 is a wasteful number, since it uses less digits than its factorization.

2544514505242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1272257252623.

The product of its (nonzero) digits is 1280000, while the sum is 43.

Adding to 2544514505242 its reverse (2425054154452), we get a palindrome (4969568659694).

The spelling of 2544514505242 in words is "two trillion, five hundred forty-four billion, five hundred fourteen million, five hundred five thousand, two hundred forty-two".