287251025 has 24 divisors (see below), whose sum is σ = 391254720. Its totient is φ = 208232640.

The previous prime is 287250941. The next prime is 287251037. The reversal of 287251025 is 520152782.

It is a happy number.

It is not a de Polignac number, because 287251025 - 2¹⁰ = 287250001 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 287250982 and 287251000.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2222 + ... + 24071.

It is an arithmetic number, because the mean of its divisors is an integer number (16302280).

Almost surely, 2^287251025 is an apocalyptic number.

287251025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

287251025 is a deficient number, since it is larger than the sum of its proper divisors (104003695).

287251025 is a wasteful number, since it uses less digits than its factorization.

287251025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26345 (or 26340 counting only the distinct ones).

The product of its (nonzero) digits is 11200, while the sum is 32.

The square root of 287251025 is about 16948.4814954025. The cubic root of 287251025 is about 659.8124849909.

The spelling of 287251025 in words is "two hundred eighty-seven million, two hundred fifty-one thousand, twenty-five".