1255910400 has 528 divisors, whose sum is σ = 4873497600. Its totient is φ = 316293120.

The previous prime is 1255910303. The next prime is 1255910413. The reversal of 1255910400 is 40195521.

1255910400 is a `hidden beast` number, since 1 + 2 + 559 + 104 + 0 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 15897561 + ... + 15897639.

Almost surely, 2^1255910400 is an apocalyptic number.

1255910400 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 1255910400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2436748800).

1255910400 is an abundant number, since it is smaller than the sum of its proper divisors (3617587200).

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

1255910400 is a wasteful number, since it uses less digits than its factorization.

1255910400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141 (or 112 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 27.

The square root of 1255910400 is about 35438.8261656619. The cubic root of 1255910400 is about 1078.9124855333.

The spelling of 1255910400 in words is "one billion, two hundred fifty-five million, nine hundred ten thousand, four hundred".