7525989 has 12 divisors (see below), whose sum is σ = 11124256. Its totient is φ = 4900392.

The previous prime is 7525979. The next prime is 7526003. The reversal of 7525989 is 9895257.

It is a happy number.

7525989 is a `hidden beast` number, since 7 + 52 + 598 + 9 = 666.

It is not a de Polignac number, because 7525989 - 2¹² = 7521893 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7525979) 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 11 ways as a sum of consecutive naturals, for example, 9337 + ... + 10110.

Almost surely, 2^7525989 is an apocalyptic number.

It is an amenable number.

7525989 is a deficient number, since it is larger than the sum of its proper divisors (3598267).

7525989 is a wasteful number, since it uses less digits than its factorization.

7525989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19496 (or 19493 counting only the distinct ones).

The product of its digits is 226800, while the sum is 45.

The square root of 7525989 is about 2743.3536046234. The cubic root of 7525989 is about 195.9692180592.

The spelling of 7525989 in words is "seven million, five hundred twenty-five thousand, nine hundred eighty-nine".