255438333543 has 8 divisors (see below), whose sum is σ = 342839971456. Its totient is φ = 169164459000.

The previous prime is 255438333541. The next prime is 255438333581. The reversal of 255438333543 is 345333834552.

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

It is not a de Polignac number, because 255438333543 - 2¹ = 255438333541 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 255438333492 and 255438333501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255438333541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 281940313 + ... + 281941218.

It is an arithmetic number, because the mean of its divisors is an integer number (42854996432).

Almost surely, 2^255438333543 is an apocalyptic number.

255438333543 is a deficient number, since it is larger than the sum of its proper divisors (87401637913).

255438333543 is a wasteful number, since it uses less digits than its factorization.

255438333543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 563881685.

The product of its digits is 7776000, while the sum is 48.

The spelling of 255438333543 in words is "two hundred fifty-five billion, four hundred thirty-eight million, three hundred thirty-three thousand, five hundred forty-three".