255513400000000 has 720 divisors, whose sum is σ = 680742213959808. Its totient is φ = 95477760000000.

The previous prime is 255513399999959. The next prime is 255513400000031. The reversal of 255513400000000 is 4315552.

It is a Harshad number since it is a multiple of its sum of digits (25).

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, 758199999832 + ... + 758200000168.

Almost surely, 2^{255513400000000} is an apocalyptic number.

255513400000000 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 255513400000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (340371106979904).

255513400000000 is an abundant number, since it is smaller than the sum of its proper divisors (425228813959808).

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

255513400000000 is an frugal number, since it uses more digits than its factorization.

255513400000000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 635 (or 584 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 25.

Adding to 255513400000000 its reverse (4315552), we get a palindrome (255513404315552).

The spelling of 255513400000000 in words is "two hundred fifty-five trillion, five hundred thirteen billion, four hundred million", and thus it is an aban number.