255136631552 has 144 divisors (see below), whose sum is σ = 593875860480. Its totient is φ = 108222259200.

The previous prime is 255136631539. The next prime is 255136631597.

255136631552 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2607449 + ... + 2703527.

It is an arithmetic number, because the mean of its divisors is an integer number (4124137920).

Almost surely, 2^255136631552 is an apocalyptic number.

255136631552 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 255136631552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (296937930240).

255136631552 is an abundant number, since it is smaller than the sum of its proper divisors (338739228928).

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

255136631552 is a wasteful number, since it uses less digits than its factorization.

255136631552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96170 (or 96156 counting only the distinct ones).

The product of its digits is 810000, while the sum is 44.

It can be divided in two parts, 255136 and 631552, that added together give a palindrome (886688).

The spelling of 255136631552 in words is "two hundred fifty-five billion, one hundred thirty-six million, six hundred thirty-one thousand, five hundred fifty-two".