254242455543 has 12 divisors (see below), whose sum is σ = 367526248960. Its totient is φ = 169362441216.

The previous prime is 254242455517. The next prime is 254242455553. The reversal of 254242455543 is 345554242452.

254242455543 is a `hidden beast` number, since 2 + 54 + 2 + 4 + 2 + 4 + 55 + 543 = 666.

It is not a de Polignac number, because 254242455543 - 2⁶ = 254242455479 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 (254242455553) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11031946 + ... + 11054967.

Almost surely, 2^254242455543 is an apocalyptic number.

254242455543 is a deficient number, since it is larger than the sum of its proper divisors (113283793417).

254242455543 is a wasteful number, since it uses less digits than its factorization.

254242455543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22088198 (or 22088195 counting only the distinct ones).

The product of its digits is 3840000, while the sum is 45.

Adding to 254242455543 its reverse (345554242452), we get a palindrome (599796697995).

The spelling of 254242455543 in words is "two hundred fifty-four billion, two hundred forty-two million, four hundred fifty-five thousand, five hundred forty-three".