25464587 has 4 divisors (see below), whose sum is σ = 25711920. Its totient is φ = 25217256.

The previous prime is 25464583. The next prime is 25464599. The reversal of 25464587 is 78546452.

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 25464587 - 2² = 25464583 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25464583) 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, 123512 + ... + 123717.

It is an arithmetic number, because the mean of its divisors is an integer number (6427980).

Almost surely, 2^25464587 is an apocalyptic number.

25464587 is a deficient number, since it is larger than the sum of its proper divisors (247333).

25464587 is a wasteful number, since it uses less digits than its factorization.

25464587 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247332.

The product of its digits is 268800, while the sum is 41.

The square root of 25464587 is about 5046.2448414638. The cubic root of 25464587 is about 294.2019491137.

The spelling of 25464587 in words is "twenty-five million, four hundred sixty-four thousand, five hundred eighty-seven".