61125589 has 12 divisors (see below), whose sum is σ = 72449964. Its totient is φ = 51402624.

The previous prime is 61125587. The next prime is 61125607. The reversal of 61125589 is 98552116.

It can be written as a sum of positive squares in 2 ways, for example, as 32148900 + 28976689 = 5670^2 + 5383^2 .

It is not a de Polignac number, because 61125589 - 2¹ = 61125587 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61125587) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9172 + ... + 14365.

It is an arithmetic number, because the mean of its divisors is an integer number (6037497).

Almost surely, 2^61125589 is an apocalyptic number.

It is an amenable number.

61125589 is a deficient number, since it is larger than the sum of its proper divisors (11324375).

61125589 is a wasteful number, since it uses less digits than its factorization.

61125589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23604 (or 23597 counting only the distinct ones).

The product of its digits is 21600, while the sum is 37.

The square root of 61125589 is about 7818.2855537515. The cubic root of 61125589 is about 393.9196865339.

The spelling of 61125589 in words is "sixty-one million, one hundred twenty-five thousand, five hundred eighty-nine".