280825541 has 2 divisors, whose sum is σ = 280825542. Its totient is φ = 280825540.

The previous prime is 280825481. The next prime is 280825549. The reversal of 280825541 is 145528082.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 264745441 + 16080100 = 16271^2 + 4010^2 .

It is a cyclic number.

It is not a de Polignac number, because 280825541 - 2¹⁰ = 280824517 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (280825549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 140412770 + 140412771.

It is an arithmetic number, because the mean of its divisors is an integer number (140412771).

Almost surely, 2^280825541 is an apocalyptic number.

It is an amenable number.

280825541 is a deficient number, since it is larger than the sum of its proper divisors (1).

280825541 is an equidigital number, since it uses as much as digits as its factorization.

280825541 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25600, while the sum is 35.

The square root of 280825541 is about 16757.8501306104. The cubic root of 280825541 is about 654.8555834125.

The spelling of 280825541 in words is "two hundred eighty million, eight hundred twenty-five thousand, five hundred forty-one".