25713245 has 8 divisors (see below), whose sum is σ = 31174584. Its totient is φ = 20358144.

The previous prime is 25713239. The next prime is 25713271. The reversal of 25713245 is 54231752.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 7828804 + 17884441 = 2798^2 + 4229^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25713245 is a prime.

It is a super-2 number, since 2×25713245² = 1322341936860050, which contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 26024 + ... + 26993.

It is an arithmetic number, because the mean of its divisors is an integer number (3896823).

Almost surely, 2^25713245 is an apocalyptic number.

It is an amenable number.

25713245 is a deficient number, since it is larger than the sum of its proper divisors (5461339).

25713245 is an equidigital number, since it uses as much as digits as its factorization.

25713245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53119.

The product of its digits is 8400, while the sum is 29.

The square root of 25713245 is about 5070.8229115204. The cubic root of 25713245 is about 295.1564620551.

Adding to 25713245 its reverse (54231752), we get a palindrome (79944997).

The spelling of 25713245 in words is "twenty-five million, seven hundred thirteen thousand, two hundred forty-five".