25003285 has 4 divisors (see below), whose sum is σ = 30003948. Its totient is φ = 20002624.

The previous prime is 25003247. The next prime is 25003301. The reversal of 25003285 is 58230052.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 19722481 + 5280804 = 4441^2 + 2298^2 .

It is a cyclic number.

It is not a de Polignac number, because 25003285 - 2²³ = 16614677 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2500324 + ... + 2500333.

It is an arithmetic number, because the mean of its divisors is an integer number (7500987).

Almost surely, 2^25003285 is an apocalyptic number.

It is an amenable number.

25003285 is a deficient number, since it is larger than the sum of its proper divisors (5000663).

25003285 is an equidigital number, since it uses as much as digits as its factorization.

25003285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5000662.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 25003285 is about 5000.3284892095. The cubic root of 25003285 is about 292.4145804581.

The spelling of 25003285 in words is "twenty-five million, three thousand, two hundred eighty-five".