286187225 has 24 divisors (see below), whose sum is σ = 368280000. Its totient is φ = 220351040.

The previous prime is 286187207. The next prime is 286187287. The reversal of 286187225 is 522781682.

It is not a de Polignac number, because 286187225 - 2⁸ = 286186969 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, 433946 + ... + 434604.

It is an arithmetic number, because the mean of its divisors is an integer number (15345000).

Almost surely, 2^286187225 is an apocalyptic number.

286187225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

286187225 is a deficient number, since it is larger than the sum of its proper divisors (82092775).

286187225 is a wasteful number, since it uses less digits than its factorization.

286187225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1297 (or 1292 counting only the distinct ones).

The product of its digits is 107520, while the sum is 41.

The square root of 286187225 is about 16917.0690428336. The cubic root of 286187225 is about 658.9969650847.

The spelling of 286187225 in words is "two hundred eighty-six million, one hundred eighty-seven thousand, two hundred twenty-five".