255493056 has 168 divisors, whose sum is σ = 847252560. Its totient is φ = 67350528.

The previous prime is 255493033. The next prime is 255493061. The reversal of 255493056 is 650394552.

It is a tau number, because it is divible by the number of its divisors (168).

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 121260 + ... + 123348.

It is an arithmetic number, because the mean of its divisors is an integer number (5043170).

Almost surely, 2^255493056 is an apocalyptic number.

255493056 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 255493056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (423626280).

255493056 is an abundant number, since it is smaller than the sum of its proper divisors (591759504).

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

255493056 is a wasteful number, since it uses less digits than its factorization.

255493056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2131 (or 2114 counting only the distinct ones).

The product of its (nonzero) digits is 162000, while the sum is 39.

The square root of 255493056 is about 15984.1501494449. The cubic root of 255493056 is about 634.5410170328.

The spelling of 255493056 in words is "two hundred fifty-five million, four hundred ninety-three thousand, fifty-six".