25930387 has 4 divisors (see below), whose sum is σ = 29634736. Its totient is φ = 22226040.

The previous prime is 25930381. The next prime is 25930391. The reversal of 25930387 is 78303952.

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 25930387 - 2¹¹ = 25928339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25930381) 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, 1852164 + ... + 1852177.

It is an arithmetic number, because the mean of its divisors is an integer number (7408684).

Almost surely, 2^25930387 is an apocalyptic number.

25930387 is a deficient number, since it is larger than the sum of its proper divisors (3704349).

25930387 is an equidigital number, since it uses as much as digits as its factorization.

25930387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3704348.

The product of its (nonzero) digits is 45360, while the sum is 37.

The square root of 25930387 is about 5092.1888221078. The cubic root of 25930387 is about 295.9849753452.

The spelling of 25930387 in words is "twenty-five million, nine hundred thirty thousand, three hundred eighty-seven".