25463951 has 4 divisors (see below), whose sum is σ = 25635000. Its totient is φ = 25292904.

The previous prime is 25463947. The next prime is 25463957. The reversal of 25463951 is 15936452.

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

It is a cyclic number.

It is not a de Polignac number, because 25463951 - 2² = 25463947 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25463957) 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, 85301 + ... + 85598.

It is an arithmetic number, because the mean of its divisors is an integer number (6408750).

Almost surely, 2^25463951 is an apocalyptic number.

25463951 is a deficient number, since it is larger than the sum of its proper divisors (171049).

25463951 is a wasteful number, since it uses less digits than its factorization.

25463951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171048.

The product of its digits is 32400, while the sum is 35.

The square root of 25463951 is about 5046.1818239140. The cubic root of 25463951 is about 294.1994997776.

The spelling of 25463951 in words is "twenty-five million, four hundred sixty-three thousand, nine hundred fifty-one".