255126621552 has 160 divisors (see below), whose sum is σ = 750534296064. Its totient is φ = 73988121600.

The previous prime is 255126621539. The next prime is 255126621587.

It is a happy number.

255126621552 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1084653 + ... + 1298739.

Almost surely, 2^255126621552 is an apocalyptic number.

255126621552 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 255126621552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (375267148032).

255126621552 is an abundant number, since it is smaller than the sum of its proper divisors (495407674512).

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

255126621552 is a wasteful number, since it uses less digits than its factorization.

255126621552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214207 (or 214201 counting only the distinct ones).

The product of its digits is 360000, while the sum is 42.

It can be divided in two parts, 255126 and 621552, that added together give a palindrome (876678).

The spelling of 255126621552 in words is "two hundred fifty-five billion, one hundred twenty-six million, six hundred twenty-one thousand, five hundred fifty-two".