25262617 has 4 divisors (see below), whose sum is σ = 25272676. Its totient is φ = 25252560.

The previous prime is 25262569. The next prime is 25262621. The reversal of 25262617 is 71626252.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 18181696 + 7080921 = 4264^2 + 2661^2 .

It is a cyclic number.

It is not a de Polignac number, because 25262617 - 2¹¹ = 25260569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25262687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2263 + ... + 7459.

It is an arithmetic number, because the mean of its divisors is an integer number (6318169).

Almost surely, 2^25262617 is an apocalyptic number.

It is an amenable number.

25262617 is a deficient number, since it is larger than the sum of its proper divisors (10059).

25262617 is an equidigital number, since it uses as much as digits as its factorization.

25262617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10058.

The product of its digits is 10080, while the sum is 31.

The square root of 25262617 is about 5026.1930921921. The cubic root of 25262617 is about 293.4220718381.

Adding to 25262617 its reverse (71626252), we get a palindrome (96888869).

Subtracting 25262617 from its reverse (71626252), we obtain a triangular number (46363635 = T₉₆₂₉).

The spelling of 25262617 in words is "twenty-five million, two hundred sixty-two thousand, six hundred seventeen".