280500053 has 2 divisors, whose sum is σ = 280500054. Its totient is φ = 280500052.

The previous prime is 280500049. The next prime is 280500061. The reversal of 280500053 is 350005082.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 160224964 + 120275089 = 12658^2 + 10967^2 .

It is a cyclic number.

It is not a de Polignac number, because 280500053 - 2² = 280500049 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (280500023) 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, 140250026 + 140250027.

It is an arithmetic number, because the mean of its divisors is an integer number (140250027).

Almost surely, 2^280500053 is an apocalyptic number.

It is an amenable number.

280500053 is a deficient number, since it is larger than the sum of its proper divisors (1).

280500053 is an equidigital number, since it uses as much as digits as its factorization.

280500053 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 280500053 is about 16748.1358067100. The cubic root of 280500053 is about 654.6024843588.

The spelling of 280500053 in words is "two hundred eighty million, five hundred thousand, fifty-three".