288925305 has 16 divisors (see below), whose sum is σ = 486611520. Its totient is φ = 145983168.

The previous prime is 288925303. The next prime is 288925327. The reversal of 288925305 is 503529882.

It is not a de Polignac number, because 288925305 - 2¹ = 288925303 is a prime.

It is not an unprimeable number, because it can be changed into a prime (288925303) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 506602 + ... + 507171.

It is an arithmetic number, because the mean of its divisors is an integer number (30413220).

Almost surely, 2^288925305 is an apocalyptic number.

It is an amenable number.

288925305 is a deficient number, since it is larger than the sum of its proper divisors (197686215).

288925305 is a wasteful number, since it uses less digits than its factorization.

288925305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1013800.

The product of its (nonzero) digits is 172800, while the sum is 42.

The square root of 288925305 is about 16997.8029462634. The cubic root of 288925305 is about 661.0919367103.

The spelling of 288925305 in words is "two hundred eighty-eight million, nine hundred twenty-five thousand, three hundred five".