25086989 has 8 divisors (see below), whose sum is σ = 25514112. Its totient is φ = 24663600.

The previous prime is 25086983. The next prime is 25087009. The reversal of 25086989 is 98968052.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25086989 - 2¹⁶ = 25021453 is a prime.

It is a super-2 number, since 2×25086989² = 1258714034172242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25086983) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14747 + ... + 16359.

It is an arithmetic number, because the mean of its divisors is an integer number (3189264).

Almost surely, 2^25086989 is an apocalyptic number.

It is an amenable number.

25086989 is a deficient number, since it is larger than the sum of its proper divisors (427123).

25086989 is a wasteful number, since it uses less digits than its factorization.

25086989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1867.

The product of its (nonzero) digits is 311040, while the sum is 47.

The square root of 25086989 is about 5008.6913460504. The cubic root of 25086989 is about 292.7405243956.

The spelling of 25086989 in words is "twenty-five million, eighty-six thousand, nine hundred eighty-nine".