285246425 has 12 divisors (see below), whose sum is σ = 354729900. Its totient is φ = 227536320.

The previous prime is 285246421. The next prime is 285246433. The reversal of 285246425 is 524642582.

It can be written as a sum of positive squares in 6 ways, for example, as 31449664 + 253796761 = 5608^2 + 15931^2 .

It is not a de Polignac number, because 285246425 - 2² = 285246421 is a prime.

It is not an unprimeable number, because it can be changed into a prime (285246421) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7622 + ... + 25071.

It is an arithmetic number, because the mean of its divisors is an integer number (29560825).

Almost surely, 2^285246425 is an apocalyptic number.

285246425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

285246425 is a deficient number, since it is larger than the sum of its proper divisors (69483475).

285246425 is a wasteful number, since it uses less digits than its factorization.

285246425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33052 (or 33047 counting only the distinct ones).

The product of its digits is 153600, while the sum is 38.

The square root of 285246425 is about 16889.2399177701. The cubic root of 285246425 is about 658.2740525944.

The spelling of 285246425 in words is "two hundred eighty-five million, two hundred forty-six thousand, four hundred twenty-five".