280533053 has 2 divisors, whose sum is σ = 280533054. Its totient is φ = 280533052.

The previous prime is 280533041. The next prime is 280533059. The reversal of 280533053 is 350335082.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 259757689 + 20775364 = 16117^2 + 4558^2 .

It is a cyclic number.

It is not a de Polignac number, because 280533053 - 2⁸ = 280532797 is a prime.

It is equal to p_15253535 and since 280533053 and 15253535 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (280533059) 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 as a sum of consecutive naturals, namely, 140266526 + 140266527.

It is an arithmetic number, because the mean of its divisors is an integer number (140266527).

Almost surely, 2^280533053 is an apocalyptic number.

It is an amenable number.

280533053 is a deficient number, since it is larger than the sum of its proper divisors (1).

280533053 is an equidigital number, since it uses as much as digits as its factorization.

280533053 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10800, while the sum is 29.

The square root of 280533053 is about 16749.1209620087. The cubic root of 280533053 is about 654.6281540330.

The spelling of 280533053 in words is "two hundred eighty million, five hundred thirty-three thousand, fifty-three".