25657514 has 4 divisors (see below), whose sum is σ = 38486274. Its totient is φ = 12828756.

The previous prime is 25657501. The next prime is 25657517. The reversal of 25657514 is 41575652.

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

It can be written as a sum of positive squares in only one way, i.e., 19492225 + 6165289 = 4415^2 + 2483^2 .

It is not an unprimeable number, because it can be changed into a prime (25657517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6414377 + ... + 6414380.

Almost surely, 2^25657514 is an apocalyptic number.

25657514 is a deficient number, since it is larger than the sum of its proper divisors (12828760).

25657514 is a wasteful number, since it uses less digits than its factorization.

25657514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12828759.

The product of its digits is 42000, while the sum is 35.

The square root of 25657514 is about 5065.3246687651. The cubic root of 25657514 is about 294.9430666726.

The spelling of 25657514 in words is "twenty-five million, six hundred fifty-seven thousand, five hundred fourteen".