255523484977460 has 144 divisors (see below), whose sum is σ = 633968111802816. Its totient is φ = 86242713113088.

The previous prime is 255523484977433. The next prime is 255523484977471. The reversal of 255523484977460 is 64779484325552.

It is a hoax number, since the sum of its digits (71) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 34000739 + ... + 40830101.

It is an arithmetic number, because the mean of its divisors is an integer number (4402556331964).

Almost surely, 2^{255523484977460} is an apocalyptic number.

255523484977460 is a gapful number since it is divisible by the number (20) 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 255523484977460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (316984055901408).

255523484977460 is an abundant number, since it is smaller than the sum of its proper divisors (378444626825356).

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

255523484977460 is a wasteful number, since it uses less digits than its factorization.

255523484977460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6829982 (or 6829973 counting only the distinct ones).

The product of its (nonzero) digits is 2032128000, while the sum is 71.

The spelling of 255523484977460 in words is "two hundred fifty-five trillion, five hundred twenty-three billion, four hundred eighty-four million, nine hundred seventy-seven thousand, four hundred sixty".