280053055 has 4 divisors (see below), whose sum is σ = 336063672. Its totient is φ = 224042440.

The previous prime is 280053043. The next prime is 280053061. The reversal of 280053055 is 550350082.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 280053055 - 2¹¹ = 280051007 is a prime.

It is a super-2 number, since 2×280053055² = 156859427229666050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28005301 + ... + 28005310.

It is an arithmetic number, because the mean of its divisors is an integer number (84015918).

Almost surely, 2^280053055 is an apocalyptic number.

280053055 is a deficient number, since it is larger than the sum of its proper divisors (56010617).

280053055 is an equidigital number, since it uses as much as digits as its factorization.

280053055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56010616.

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 280053055 is about 16734.7857769378. The cubic root of 280053055 is about 654.2545800051.

It can be divided in two parts, 2800 and 53055, that added together give a palindrome (55855).

The spelling of 280053055 in words is "two hundred eighty million, fifty-three thousand, fifty-five".