280232503 has 2 divisors, whose sum is σ = 280232504. Its totient is φ = 280232502.

The previous prime is 280232453. The next prime is 280232507. The reversal of 280232503 is 305232082.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 280232503 - 2¹⁷ = 280101431 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (280232507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 140116251 + 140116252.

It is an arithmetic number, because the mean of its divisors is an integer number (140116252).

Almost surely, 2^280232503 is an apocalyptic number.

280232503 is a deficient number, since it is larger than the sum of its proper divisors (1).

280232503 is an equidigital number, since it uses as much as digits as its factorization.

280232503 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 280232503 is about 16740.1464449986. The cubic root of 280232503 is about 654.3942911615.

Adding to 280232503 its reverse (305232082), we get a palindrome (585464585).

The spelling of 280232503 in words is "two hundred eighty million, two hundred thirty-two thousand, five hundred three".