1255534800 has 360 divisors, whose sum is σ = 4490837568. Its totient is φ = 299520000.

The previous prime is 1255534793. The next prime is 1255534843. The reversal of 1255534800 is 84355521.

It is a super-2 number, since 2×1255534800² = 3152735268022080000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 8314725 + ... + 8314875.

Almost surely, 2^1255534800 is an apocalyptic number.

1255534800 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 1255534800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2245418784).

1255534800 is an abundant number, since it is smaller than the sum of its proper divisors (3235302768).

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

1255534800 is a wasteful number, since it uses less digits than its factorization.

1255534800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239 (or 215 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 33.

The square root of 1255534800 is about 35433.5264968081. The cubic root of 1255534800 is about 1078.8049194909.

The spelling of 1255534800 in words is "one billion, two hundred fifty-five million, five hundred thirty-four thousand, eight hundred".