280053307505 has 16 divisors (see below), whose sum is σ = 340188617664. Its totient is φ = 221294082240.

The previous prime is 280053307477. The next prime is 280053307543. The reversal of 280053307505 is 505703350082.

It is not a de Polignac number, because 280053307505 - 2¹⁶ = 280053241969 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1851590 + ... + 1997120.

It is an arithmetic number, because the mean of its divisors is an integer number (21261788604).

Almost surely, 2^280053307505 is an apocalyptic number.

It is an amenable number.

280053307505 is a deficient number, since it is larger than the sum of its proper divisors (60135310159).

280053307505 is a wasteful number, since it uses less digits than its factorization.

280053307505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150256.

The product of its (nonzero) digits is 126000, while the sum is 38.

Adding to 280053307505 its reverse (505703350082), we get a palindrome (785756657587).

The spelling of 280053307505 in words is "two hundred eighty billion, fifty-three million, three hundred seven thousand, five hundred five".