255300550278 has 8 divisors (see below), whose sum is σ = 510601100568. Its totient is φ = 85100183424.

The previous prime is 255300550243. The next prime is 255300550283. The reversal of 255300550278 is 872055003552.

It is a happy number.

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

255300550278 is an admirable number.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21275045851 + ... + 21275045862.

It is an arithmetic number, because the mean of its divisors is an integer number (63825137571).

Almost surely, 2^255300550278 is an apocalyptic number.

255300550278 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

255300550278 is a wasteful number, since it uses less digits than its factorization.

255300550278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42550091718.

The product of its (nonzero) digits is 420000, while the sum is 42.

The spelling of 255300550278 in words is "two hundred fifty-five billion, three hundred million, five hundred fifty thousand, two hundred seventy-eight".