25885487 has 4 divisors (see below), whose sum is σ = 26778120. Its totient is φ = 24992856.

The previous prime is 25885427. The next prime is 25885493. The reversal of 25885487 is 78458852.

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 25885487 - 2⁸ = 25885231 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 (25885417) 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, 446273 + ... + 446330.

It is an arithmetic number, because the mean of its divisors is an integer number (6694530).

Almost surely, 2^25885487 is an apocalyptic number.

25885487 is a deficient number, since it is larger than the sum of its proper divisors (892633).

25885487 is an equidigital number, since it uses as much as digits as its factorization.

25885487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 892632.

The product of its digits is 716800, while the sum is 47.

The square root of 25885487 is about 5087.7781987819. The cubic root of 25885487 is about 295.8140381429.

The spelling of 25885487 in words is "twenty-five million, eight hundred eighty-five thousand, four hundred eighty-seven".