25152305 has 4 divisors (see below), whose sum is σ = 30182772. Its totient is φ = 20121840.

The previous prime is 25152301. The next prime is 25152319. The reversal of 25152305 is 50325152.

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 16056049 + 9096256 = 4007^2 + 3016^2 .

It is not a de Polignac number, because 25152305 - 2² = 25152301 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25152301) 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, 2515226 + ... + 2515235.

It is an arithmetic number, because the mean of its divisors is an integer number (7545693).

Almost surely, 2^25152305 is an apocalyptic number.

It is an amenable number.

25152305 is a deficient number, since it is larger than the sum of its proper divisors (5030467).

25152305 is an equidigital number, since it uses as much as digits as its factorization.

25152305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5030466.

The product of its (nonzero) digits is 1500, while the sum is 23.

The square root of 25152305 is about 5015.2073735789. The cubic root of 25152305 is about 292.9943620856.

Adding to 25152305 its reverse (50325152), we get a palindrome (75477457).

The spelling of 25152305 in words is "twenty-five million, one hundred fifty-two thousand, three hundred five".