25089729 has 32 divisors (see below), whose sum is σ = 39325440. Its totient is φ = 13934592.

The previous prime is 25089703. The next prime is 25089733. The reversal of 25089729 is 92798052.

It is not a de Polignac number, because 25089729 - 2⁷ = 25089601 is a prime.

It is a super-3 number, since 3×25089729³ (a number of 23 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (25089749) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 221977 + ... + 222089.

It is an arithmetic number, because the mean of its divisors is an integer number (1228920).

Almost surely, 2^25089729 is an apocalyptic number.

It is an amenable number.

25089729 is a deficient number, since it is larger than the sum of its proper divisors (14235711).

25089729 is a wasteful number, since it uses less digits than its factorization.

25089729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329.

The product of its (nonzero) digits is 90720, while the sum is 42.

The square root of 25089729 is about 5008.9648631229. The cubic root of 25089729 is about 292.7511817107.

The spelling of 25089729 in words is "twenty-five million, eighty-nine thousand, seven hundred twenty-nine".