255222107400 has 384 divisors, whose sum is σ = 862584791040. Its totient is φ = 62052480000.

The previous prime is 255222107369. The next prime is 255222107401. The reversal of 255222107400 is 4701222552.

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

It is not an unprimeable number, because it can be changed into a prime (255222107401) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 242836875 + ... + 242837925.

It is an arithmetic number, because the mean of its divisors is an integer number (2246314560).

Almost surely, 2^255222107400 is an apocalyptic number.

255222107400 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 255222107400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (431292395520).

255222107400 is an abundant number, since it is smaller than the sum of its proper divisors (607362683640).

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

255222107400 is a wasteful number, since it uses less digits than its factorization.

255222107400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1437 (or 1428 counting only the distinct ones).

The product of its (nonzero) digits is 11200, while the sum is 30.

Adding to 255222107400 its reverse (4701222552), we get a palindrome (259923329952).

The spelling of 255222107400 in words is "two hundred fifty-five billion, two hundred twenty-two million, one hundred seven thousand, four hundred".