255312400 has 60 divisors (see below), whose sum is σ = 701022592. Its totient is φ = 87534720.

The previous prime is 255312377. The next prime is 255312401. The reversal of 255312400 is 4213552.

It is not an unprimeable number, because it can be changed into a prime (255312401) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 42792 + ... + 48391.

Almost surely, 2^255312400 is an apocalyptic number.

255312400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

255312400 is an abundant number, since it is smaller than the sum of its proper divisors (445710192).

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

255312400 is a wasteful number, since it uses less digits than its factorization.

255312400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91208 (or 91197 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 255312400 is about 15978.4980520699. The cubic root of 255312400 is about 634.3914230503.

Adding to 255312400 its reverse (4213552), we get a palindrome (259525952).

The spelling of 255312400 in words is "two hundred fifty-five million, three hundred twelve thousand, four hundred".