280050005021 has 2 divisors, whose sum is σ = 280050005022. Its totient is φ = 280050005020.

The previous prime is 280050004981. The next prime is 280050005023. The reversal of 280050005021 is 120500050082.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 279720400996 + 329604025 = 528886^2 + 18155^2 .

It is a cyclic number.

It is not a de Polignac number, because 280050005021 - 2¹⁸ = 280049742877 is a prime.

Together with 280050005023, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (280050005023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 140025002510 + 140025002511.

It is an arithmetic number, because the mean of its divisors is an integer number (140025002511).

Almost surely, 2^280050005021 is an apocalyptic number.

It is an amenable number.

280050005021 is a deficient number, since it is larger than the sum of its proper divisors (1).

280050005021 is an equidigital number, since it uses as much as digits as its factorization.

280050005021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 800, while the sum is 23.

The spelling of 280050005021 in words is "two hundred eighty billion, fifty million, five thousand, twenty-one".