287285025 has 24 divisors (see below), whose sum is σ = 479602240. Its totient is φ = 151727040.

The previous prime is 287284999. The next prime is 287285059. The reversal of 287285025 is 520582782.

It is a happy number.

It is not a de Polignac number, because 287285025 - 2⁵ = 287284993 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10870 + ... + 26319.

Almost surely, 2^287285025 is an apocalyptic number.

287285025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

287285025 is a deficient number, since it is larger than the sum of its proper divisors (192317215).

287285025 is a wasteful number, since it uses less digits than its factorization.

287285025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37305 (or 37300 counting only the distinct ones).

The product of its (nonzero) digits is 89600, while the sum is 39.

The square root of 287285025 is about 16949.4845054356. The cubic root of 287285025 is about 659.8385165074.

The spelling of 287285025 in words is "two hundred eighty-seven million, two hundred eighty-five thousand, twenty-five".