288807825 has 24 divisors (see below), whose sum is σ = 478584448. Its totient is φ = 153679680.

The previous prime is 288807821. The next prime is 288807863. The reversal of 288807825 is 528708882.

It is a happy number.

It is not a de Polignac number, because 288807825 - 2² = 288807821 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (288807821) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30567 + ... + 38883.

Almost surely, 2^288807825 is an apocalyptic number.

288807825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

288807825 is a deficient number, since it is larger than the sum of its proper divisors (189776623).

288807825 is a wasteful number, since it uses less digits than its factorization.

288807825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8793 (or 8788 counting only the distinct ones).

The product of its (nonzero) digits is 573440, while the sum is 48.

The square root of 288807825 is about 16994.3468541748. The cubic root of 288807825 is about 661.0023223033.

The spelling of 288807825 in words is "two hundred eighty-eight million, eight hundred seven thousand, eight hundred twenty-five".