255531430000 has 300 divisors, whose sum is σ = 777194405680. Its totient is φ = 79643520000.

The previous prime is 255531429991. The next prime is 255531430003. The reversal of 255531430000 is 34135552.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255531430003) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 8454916 + ... + 8485084.

Almost surely, 2^255531430000 is an apocalyptic number.

255531430000 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 255531430000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (388597202840).

255531430000 is an abundant number, since it is smaller than the sum of its proper divisors (521662975680).

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

255531430000 is a wasteful number, since it uses less digits than its factorization.

255531430000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30226 (or 30194 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 28.

Adding to 255531430000 its reverse (34135552), we get a palindrome (255565565552).

The spelling of 255531430000 in words is "two hundred fifty-five billion, five hundred thirty-one million, four hundred thirty thousand".