254401111115543 has 8 divisors (see below), whose sum is σ = 290744238237600. Its totient is φ = 218058011805600.

The previous prime is 254401111115539. The next prime is 254401111115597. The reversal of 254401111115543 is 345511111104452.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 254401111115543 - 2² = 254401111115539 is a prime.

It is a super-2 number, since 2×254401111115543² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 254401111115497 and 254401111115506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (254401111115533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19212233 + ... + 29629581.

It is an arithmetic number, because the mean of its divisors is an integer number (36343029779700).

Almost surely, 2^{254401111115543} is an apocalyptic number.

254401111115543 is a deficient number, since it is larger than the sum of its proper divisors (36343127122057).

254401111115543 is a wasteful number, since it uses less digits than its factorization.

254401111115543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13906057.

The product of its (nonzero) digits is 48000, while the sum is 38.

Adding to 254401111115543 its reverse (345511111104452), we get a palindrome (599912222219995).

The spelling of 254401111115543 in words is "two hundred fifty-four trillion, four hundred one billion, one hundred eleven million, one hundred fifteen thousand, five hundred forty-three".