1255113200 has 120 divisors (see below), whose sum is σ = 3320985360. Its totient is φ = 452044800.

The previous prime is 1255113137. The next prime is 1255113217. The reversal of 1255113200 is 23115521.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 478292 + ... + 480908.

It is an arithmetic number, because the mean of its divisors is an integer number (27674878).

Almost surely, 2^1255113200 is an apocalyptic number.

1255113200 is a gapful number since it is divisible by the number (10) 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 1255113200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1660492680).

1255113200 is an abundant number, since it is smaller than the sum of its proper divisors (2065872160).

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

1255113200 is a wasteful number, since it uses less digits than its factorization.

1255113200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2755 (or 2744 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 1255113200 is about 35427.5768293571. The cubic root of 1255113200 is about 1078.6841542009.

Adding to 1255113200 its reverse (23115521), we get a palindrome (1278228721).

The spelling of 1255113200 in words is "one billion, two hundred fifty-five million, one hundred thirteen thousand, two hundred".