280548255 has 16 divisors (see below), whose sum is σ = 483406560. Its totient is φ = 138115968.

The previous prime is 280548253. The next prime is 280548259. The reversal of 280548255 is 552845082.

It is not a de Polignac number, because 280548255 - 2¹ = 280548253 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (280548253) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 719160 + ... + 719549.

It is an arithmetic number, because the mean of its divisors is an integer number (30212910).

Almost surely, 2^280548255 is an apocalyptic number.

280548255 is a deficient number, since it is larger than the sum of its proper divisors (202858305).

280548255 is a wasteful number, since it uses less digits than its factorization.

280548255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1438730.

The product of its (nonzero) digits is 128000, while the sum is 39.

The square root of 280548255 is about 16749.5747707218. The cubic root of 280548255 is about 654.6399785189.

The spelling of 280548255 in words is "two hundred eighty million, five hundred forty-eight thousand, two hundred fifty-five".