280000808025 has 48 divisors (see below), whose sum is σ = 483166218240. Its totient is φ = 142810254400.

The previous prime is 280000807973. The next prime is 280000808083. The reversal of 280000808025 is 520808000082.

It is not a de Polignac number, because 280000808025 - 2³⁵ = 245641069657 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9505570 + ... + 9534980.

It is an arithmetic number, because the mean of its divisors is an integer number (10065962880).

Almost surely, 2^280000808025 is an apocalyptic number.

280000808025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

280000808025 is a deficient number, since it is larger than the sum of its proper divisors (203165410215).

280000808025 is a wasteful number, since it uses less digits than its factorization.

280000808025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34966 (or 34961 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 33.

The spelling of 280000808025 in words is "two hundred eighty billion, eight hundred eight thousand, twenty-five".