255515235200 has 48 divisors (see below), whose sum is σ = 631202487360. Its totient is φ = 102206092800.

The previous prime is 255515235197. The next prime is 255515235221. The reversal of 255515235200 is 2532515552.

It is a super-2 number, since 2×255515235200² (a number of 24 digits) 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 5 ways as a sum of consecutive naturals, for example, 39921056 + ... + 39927455.

It is an arithmetic number, because the mean of its divisors is an integer number (13150051820).

Almost surely, 2^255515235200 is an apocalyptic number.

255515235200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

255515235200 is an abundant number, since it is smaller than the sum of its proper divisors (375687252160).

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

255515235200 is an equidigital number, since it uses as much as digits as its factorization.

255515235200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79848535 (or 79848518 counting only the distinct ones).

The product of its (nonzero) digits is 75000, while the sum is 35.

The spelling of 255515235200 in words is "two hundred fifty-five billion, five hundred fifteen million, two hundred thirty-five thousand, two hundred".