285825297 has 4 divisors (see below), whose sum is σ = 381100400. Its totient is φ = 190550196.

The previous prime is 285825263. The next prime is 285825307. The reversal of 285825297 is 792528582.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 285825297 - 2²⁷ = 151607569 is a prime.

It is a super-2 number, since 2×285825297² = 163392200810276418, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (285825217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47637547 + ... + 47637552.

It is an arithmetic number, because the mean of its divisors is an integer number (95275100).

Almost surely, 2^285825297 is an apocalyptic number.

It is an amenable number.

285825297 is a deficient number, since it is larger than the sum of its proper divisors (95275103).

285825297 is an equidigital number, since it uses as much as digits as its factorization.

285825297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95275102.

The product of its digits is 806400, while the sum is 48.

The square root of 285825297 is about 16906.3685337804. The cubic root of 285825297 is about 658.7190467064.

The spelling of 285825297 in words is "two hundred eighty-five million, eight hundred twenty-five thousand, two hundred ninety-seven".