25387983 has 6 divisors (see below), whose sum is σ = 36671544. Its totient is φ = 16925316.

The previous prime is 25387949. The next prime is 25388003. The reversal of 25387983 is 38978352.

It is not a de Polignac number, because 25387983 - 2⁸ = 25387727 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25387183) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1410435 + ... + 1410452.

It is an arithmetic number, because the mean of its divisors is an integer number (6111924).

Almost surely, 2^25387983 is an apocalyptic number.

25387983 is a deficient number, since it is larger than the sum of its proper divisors (11283561).

25387983 is a wasteful number, since it uses less digits than its factorization.

25387983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2820893 (or 2820890 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The square root of 25387983 is about 5038.6489260515. The cubic root of 25387983 is about 293.9066411889.

The spelling of 25387983 in words is "twenty-five million, three hundred eighty-seven thousand, nine hundred eighty-three".