25717046 has 4 divisors (see below), whose sum is σ = 38575572. Its totient is φ = 12858522.

The previous prime is 25717033. The next prime is 25717049. The reversal of 25717046 is 64071752.

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

It is a super-2 number, since 2×25717046² = 1322732909932232, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25717049) 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 as a sum of consecutive naturals, namely, 6429260 + ... + 6429263.

It is an arithmetic number, because the mean of its divisors is an integer number (9643893).

Almost surely, 2^25717046 is an apocalyptic number.

25717046 is a deficient number, since it is larger than the sum of its proper divisors (12858526).

25717046 is a wasteful number, since it uses less digits than its factorization.

25717046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12858525.

The product of its (nonzero) digits is 11760, while the sum is 32.

The square root of 25717046 is about 5071.1976889094. The cubic root of 25717046 is about 295.1710049419.

Adding to 25717046 its reverse (64071752), we get a palindrome (89788798).

The spelling of 25717046 in words is "twenty-five million, seven hundred seventeen thousand, forty-six".