25467487 has 4 divisors (see below), whose sum is σ = 25826256. Its totient is φ = 25108720.

The previous prime is 25467473. The next prime is 25467493. The reversal of 25467487 is 78476452.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25467487 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 (25467457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 179278 + ... + 179419.

It is an arithmetic number, because the mean of its divisors is an integer number (6456564).

Almost surely, 2^25467487 is an apocalyptic number.

25467487 is a deficient number, since it is larger than the sum of its proper divisors (358769).

25467487 is an equidigital number, since it uses as much as digits as its factorization.

25467487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358768.

The product of its digits is 376320, while the sum is 43.

The square root of 25467487 is about 5046.5321756628. The cubic root of 25467487 is about 294.2131169532.

The spelling of 25467487 in words is "twenty-five million, four hundred sixty-seven thousand, four hundred eighty-seven".