25951023 has 40 divisors (see below), whose sum is σ = 45538592. Its totient is φ = 14416704.

The previous prime is 25951021. The next prime is 25951049. The reversal of 25951023 is 32015952.

It is not a de Polignac number, because 25951023 - 2¹ = 25951021 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25951021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 20361 + ... + 21597.

Almost surely, 2^25951023 is an apocalyptic number.

25951023 is a deficient number, since it is larger than the sum of its proper divisors (19587569).

25951023 is a wasteful number, since it uses less digits than its factorization.

25951023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1293 (or 1284 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 25951023 is about 5094.2146597881. The cubic root of 25951023 is about 296.0634717490.

Adding to 25951023 its reverse (32015952), we get a palindrome (57966975).

The spelling of 25951023 in words is "twenty-five million, nine hundred fifty-one thousand, twenty-three".