2800280533 has 2 divisors, whose sum is σ = 2800280534. Its totient is φ = 2800280532.

The previous prime is 2800280519. The next prime is 2800280543. The reversal of 2800280533 is 3350820082.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2689252164 + 111028369 = 51858^2 + 10537^2 .

It is a cyclic number.

It is not a de Polignac number, because 2800280533 - 2⁵ = 2800280501 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2800280495 and 2800280504.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2800280543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1400140266 + 1400140267.

It is an arithmetic number, because the mean of its divisors is an integer number (1400140267).

Almost surely, 2^2800280533 is an apocalyptic number.

It is an amenable number.

2800280533 is a deficient number, since it is larger than the sum of its proper divisors (1).

2800280533 is an equidigital number, since it uses as much as digits as its factorization.

2800280533 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 2800280533 is about 52917.6769425870. The cubic root of 2800280533 is about 1409.5068162662.

The spelling of 2800280533 in words is "two billion, eight hundred million, two hundred eighty thousand, five hundred thirty-three".