255005489838 has 32 divisors (see below), whose sum is σ = 556408506240. Its totient is φ = 77269822560.

The previous prime is 255005489821. The next prime is 255005489857. The reversal of 255005489838 is 838984500552.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1109193 + ... + 1319211.

It is an arithmetic number, because the mean of its divisors is an integer number (17387765820).

Almost surely, 2^255005489838 is an apocalyptic number.

255005489838 is an abundant number, since it is smaller than the sum of its proper divisors (301403016402).

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

255005489838 is a wasteful number, since it uses less digits than its factorization.

255005489838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228432.

The product of its (nonzero) digits is 13824000, while the sum is 57.

The spelling of 255005489838 in words is "two hundred fifty-five billion, five million, four hundred eighty-nine thousand, eight hundred thirty-eight".