89125009 has 4 divisors (see below), whose sum is σ = 89200420. Its totient is φ = 89049600.

The previous prime is 89125007. The next prime is 89125037. The reversal of 89125009 is 90052198.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 41473600 + 47651409 = 6440^2 + 6903^2 .

It is a cyclic number.

It is not a de Polignac number, because 89125009 - 2¹ = 89125007 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89125007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35904 + ... + 38305.

It is an arithmetic number, because the mean of its divisors is an integer number (22300105).

Almost surely, 2^89125009 is an apocalyptic number.

It is an amenable number.

89125009 is a deficient number, since it is larger than the sum of its proper divisors (75411).

89125009 is a wasteful number, since it uses less digits than its factorization.

89125009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75410.

The product of its (nonzero) digits is 6480, while the sum is 34.

The square root of 89125009 is about 9440.6042709140. The cubic root of 89125009 is about 446.6834504596.

The spelling of 89125009 in words is "eighty-nine million, one hundred twenty-five thousand, nine".