255923550 has 120 divisors (see below), whose sum is σ = 735946200. Its totient is φ = 65862720.

The previous prime is 255923543. The next prime is 255923567. The reversal of 255923550 is 55329552.

255923550 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 116361 + ... + 118539.

It is an arithmetic number, because the mean of its divisors is an integer number (6132885).

Almost surely, 2^255923550 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 255923550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (367973100).

255923550 is an abundant number, since it is smaller than the sum of its proper divisors (480022650).

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

255923550 is a wasteful number, since it uses less digits than its factorization.

255923550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2232 (or 2218 counting only the distinct ones).

The product of its (nonzero) digits is 67500, while the sum is 36.

The square root of 255923550 is about 15997.6107591102. The cubic root of 255923550 is about 634.8972078223.

The spelling of 255923550 in words is "two hundred fifty-five million, nine hundred twenty-three thousand, five hundred fifty".