2525305 has 4 divisors (see below), whose sum is σ = 3030372. Its totient is φ = 2020240.

The previous prime is 2525293. The next prime is 2525323. The reversal of 2525305 is 5035252.

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 1929321 + 595984 = 1389^2 + 772^2 .

It is not a de Polignac number, because 2525305 - 2⁵ = 2525273 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 252526 + ... + 252535.

It is an arithmetic number, because the mean of its divisors is an integer number (757593).

2^2525305 is an apocalyptic number.

It is an amenable number.

2525305 is a deficient number, since it is larger than the sum of its proper divisors (505067).

2525305 is an equidigital number, since it uses as much as digits as its factorization.

2525305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505066.

The product of its (nonzero) digits is 1500, while the sum is 22.

The square root of 2525305 is about 1589.1208261174. The cubic root of 2525305 is about 136.1772666820.

The spelling of 2525305 in words is "two million, five hundred twenty-five thousand, three hundred five".