255405504552 has 256 divisors, whose sum is σ = 726971397120. Its totient is φ = 74109235200.

The previous prime is 255405504503. The next prime is 255405504569.

It is a happy number.

255405504552 is nontrivially palindromic in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 105932227 + ... + 105934637.

It is an arithmetic number, because the mean of its divisors is an integer number (2839732020).

Almost surely, 2^255405504552 is an apocalyptic number.

255405504552 is a gapful number since it is divisible by the number (22) 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 255405504552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (363485698560).

255405504552 is an abundant number, since it is smaller than the sum of its proper divisors (471565892568).

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

255405504552 is a wasteful number, since it uses less digits than its factorization.

255405504552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2664 (or 2660 counting only the distinct ones).

The product of its (nonzero) digits is 1000000, while the sum is 42.

It can be divided in two parts, 255405 and 504552, that added together give a palindrome (759957).

The spelling of 255405504552 in words is "two hundred fifty-five billion, four hundred five million, five hundred four thousand, five hundred fifty-two".