25463491 has 4 divisors (see below), whose sum is σ = 25553752. Its totient is φ = 25373232.

The previous prime is 25463483. The next prime is 25463497. The reversal of 25463491 is 19436452.

It is a happy number.

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 25463491 - 2³ = 25463483 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25463497) 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, 44706 + ... + 45271.

It is an arithmetic number, because the mean of its divisors is an integer number (6388438).

Almost surely, 2^25463491 is an apocalyptic number.

25463491 is a deficient number, since it is larger than the sum of its proper divisors (90261).

25463491 is an equidigital number, since it uses as much as digits as its factorization.

25463491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90260.

The product of its digits is 25920, while the sum is 34.

The square root of 25463491 is about 5046.1362446926. The cubic root of 25463491 is about 294.1977282197.

The spelling of 25463491 in words is "twenty-five million, four hundred sixty-three thousand, four hundred ninety-one".