255222430320 has 320 divisors, whose sum is σ = 940718790144. Its totient is φ = 56423976960.

The previous prime is 255222430289. The next prime is 255222430321. The reversal of 255222430320 is 23034222552.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255222430321) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2803762 + ... + 2893358.

Almost surely, 2^255222430320 is an apocalyptic number.

255222430320 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 255222430320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (470359395072).

255222430320 is an abundant number, since it is smaller than the sum of its proper divisors (685496359824).

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

255222430320 is a wasteful number, since it uses less digits than its factorization.

255222430320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89720 (or 89714 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 30.

Adding to 255222430320 its reverse (23034222552), we get a palindrome (278256652872).

The spelling of 255222430320 in words is "two hundred fifty-five billion, two hundred twenty-two million, four hundred thirty thousand, three hundred twenty".