25671763 has 4 divisors (see below), whose sum is σ = 27646528. Its totient is φ = 23697000.

The previous prime is 25671743. The next prime is 25671791. The reversal of 25671763 is 36717652.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25671763 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25671713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 987363 + ... + 987388.

It is an arithmetic number, because the mean of its divisors is an integer number (6911632).

Almost surely, 2^25671763 is an apocalyptic number.

25671763 is a deficient number, since it is larger than the sum of its proper divisors (1974765).

25671763 is a wasteful number, since it uses less digits than its factorization.

25671763 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1974764.

The product of its digits is 52920, while the sum is 37.

The square root of 25671763 is about 5066.7309973986. The cubic root of 25671763 is about 294.9976558274.

It can be divided in two parts, 2 and 5671763, that added together give a palindrome (5671765).

The spelling of 25671763 in words is "twenty-five million, six hundred seventy-one thousand, seven hundred sixty-three".