25766487 has 12 divisors (see below), whose sum is σ = 38419264. Its totient is φ = 16623360.

The previous prime is 25766483. The next prime is 25766501. The reversal of 25766487 is 78466752.

It is not a de Polignac number, because 25766487 - 2² = 25766483 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 (25766483) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 45898 + ... + 46455.

Almost surely, 2^25766487 is an apocalyptic number.

25766487 is a deficient number, since it is larger than the sum of its proper divisors (12652777).

25766487 is a wasteful number, since it uses less digits than its factorization.

25766487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92390 (or 92387 counting only the distinct ones).

The product of its digits is 564480, while the sum is 45.

The square root of 25766487 is about 5076.0700349778. The cubic root of 25766487 is about 295.3600391932.

The spelling of 25766487 in words is "twenty-five million, seven hundred sixty-six thousand, four hundred eighty-seven".