25971045 has 16 divisors (see below), whose sum is σ = 41773632. Its totient is φ = 13777920.

The previous prime is 25971041. The next prime is 25971061. The reversal of 25971045 is 54017952.

It is not a de Polignac number, because 25971045 - 2² = 25971041 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25970997 and 25971015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25971041) 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 15 ways as a sum of consecutive naturals, for example, 1591 + ... + 7380.

It is an arithmetic number, because the mean of its divisors is an integer number (2610852).

Almost surely, 2^25971045 is an apocalyptic number.

It is an amenable number.

25971045 is a deficient number, since it is larger than the sum of its proper divisors (15802587).

25971045 is a wasteful number, since it uses less digits than its factorization.

25971045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9172.

The product of its (nonzero) digits is 12600, while the sum is 33.

The square root of 25971045 is about 5096.1794513145. The cubic root of 25971045 is about 296.1395928201.

Adding to 25971045 its reverse (54017952), we get a palindrome (79988997).

The spelling of 25971045 in words is "twenty-five million, nine hundred seventy-one thousand, forty-five".