25962491 has 4 divisors (see below), whose sum is σ = 26074152. Its totient is φ = 25850832.

The previous prime is 25962479. The next prime is 25962529. The reversal of 25962491 is 19426952.

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 25962491 - 2⁶ = 25962427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25962401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55481 + ... + 55946.

It is an arithmetic number, because the mean of its divisors is an integer number (6518538).

Almost surely, 2^25962491 is an apocalyptic number.

25962491 is a deficient number, since it is larger than the sum of its proper divisors (111661).

25962491 is a wasteful number, since it uses less digits than its factorization.

25962491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111660.

The product of its digits is 38880, while the sum is 38.

The square root of 25962491 is about 5095.3401260367. The cubic root of 25962491 is about 296.1070763998.

The spelling of 25962491 in words is "twenty-five million, nine hundred sixty-two thousand, four hundred ninety-one".