255537280 has 32 divisors (see below), whose sum is σ = 610895340. Its totient is φ = 102214656.

The previous prime is 255537259. The next prime is 255537287. The reversal of 255537280 is 82735552.

It can be written as a sum of positive squares in 2 ways, for example, as 255232576 + 304704 = 15976^2 + 552^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is not an unprimeable number, because it can be changed into a prime (255537287) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 198999 + ... + 200278.

Almost surely, 2^255537280 is an apocalyptic number.

255537280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

255537280 is an abundant number, since it is smaller than the sum of its proper divisors (355358060).

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

255537280 is an equidigital number, since it uses as much as digits as its factorization.

255537280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399296 (or 399284 counting only the distinct ones).

The product of its (nonzero) digits is 84000, while the sum is 37.

The square root of 255537280 is about 15985.5334599756. The cubic root of 255537280 is about 634.5776264074.

The spelling of 255537280 in words is "two hundred fifty-five million, five hundred thirty-seven thousand, two hundred eighty".