280252801 has 4 divisors (see below), whose sum is σ = 286770352. Its totient is φ = 273735252.

The previous prime is 280252789. The next prime is 280252813. The reversal of 280252801 is 108252082.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (280252789) and next prime (280252813).

It is a cyclic number.

It is not a de Polignac number, because 280252801 - 2¹¹ = 280250753 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 280252801.

It is not an unprimeable number, because it can be changed into a prime (280252501) 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, 3258711 + ... + 3258796.

It is an arithmetic number, because the mean of its divisors is an integer number (71692588).

Almost surely, 2^280252801 is an apocalyptic number.

It is an amenable number.

280252801 is a deficient number, since it is larger than the sum of its proper divisors (6517551).

280252801 is an equidigital number, since it uses as much as digits as its factorization.

280252801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6517550.

The product of its (nonzero) digits is 2560, while the sum is 28.

The square root of 280252801 is about 16740.7527011183. The cubic root of 280252801 is about 654.4100906310.

The spelling of 280252801 in words is "two hundred eighty million, two hundred fifty-two thousand, eight hundred one".