288325257 has 8 divisors (see below), whose sum is σ = 419382240. Its totient is φ = 174742560.

The previous prime is 288325237. The next prime is 288325259. The reversal of 288325257 is 752523882.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 288325257 - 2⁷ = 288325129 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (288325259) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4368532 + ... + 4368597.

It is an arithmetic number, because the mean of its divisors is an integer number (52422780).

Almost surely, 2^288325257 is an apocalyptic number.

It is an amenable number.

288325257 is a deficient number, since it is larger than the sum of its proper divisors (131056983).

288325257 is a wasteful number, since it uses less digits than its factorization.

288325257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8737143.

The product of its digits is 268800, while the sum is 42.

The square root of 288325257 is about 16980.1430205991. The cubic root of 288325257 is about 660.6339615617.

The spelling of 288325257 in words is "two hundred eighty-eight million, three hundred twenty-five thousand, two hundred fifty-seven".