25467947 has 4 divisors (see below), whose sum is σ = 25532496. Its totient is φ = 25403400.

The previous prime is 25467943. The next prime is 25467971. The reversal of 25467947 is 74976452.

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 25467947 - 2² = 25467943 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25467898 and 25467907.

It is not an unprimeable number, because it can be changed into a prime (25467943) 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, 31679 + ... + 32472.

It is an arithmetic number, because the mean of its divisors is an integer number (6383124).

Almost surely, 2^25467947 is an apocalyptic number.

25467947 is a deficient number, since it is larger than the sum of its proper divisors (64549).

25467947 is an equidigital number, since it uses as much as digits as its factorization.

25467947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64548.

The product of its digits is 423360, while the sum is 44.

The square root of 25467947 is about 5046.5777513083. The cubic root of 25467947 is about 294.2148883257.

The spelling of 25467947 in words is "twenty-five million, four hundred sixty-seven thousand, nine hundred forty-seven".