25789019 has 4 divisors (see below), whose sum is σ = 25814880. Its totient is φ = 25763160.

The previous prime is 25788943. The next prime is 25789039. The reversal of 25789019 is 91098752.

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 25789019 - 2¹² = 25784923 is a prime.

It is a super-2 number, since 2×25789019² = 1330147001964722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25789039) 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, 11372 + ... + 13449.

It is an arithmetic number, because the mean of its divisors is an integer number (6453720).

Almost surely, 2^25789019 is an apocalyptic number.

25789019 is a deficient number, since it is larger than the sum of its proper divisors (25861).

25789019 is a wasteful number, since it uses less digits than its factorization.

25789019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25860.

The product of its (nonzero) digits is 45360, while the sum is 41.

The square root of 25789019 is about 5078.2889835062. The cubic root of 25789019 is about 295.4461085315.

The spelling of 25789019 in words is "twenty-five million, seven hundred eighty-nine thousand, nineteen".