61595489 has 4 divisors (see below), whose sum is σ = 63097860. Its totient is φ = 60093120.

The previous prime is 61595477. The next prime is 61595497. The reversal of 61595489 is 98459516.

It is a happy number.

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 1067089 + 60528400 = 1033^2 + 7780^2 .

It is a cyclic number.

It is not a de Polignac number, because 61595489 - 2¹² = 61591393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61595689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 751124 + ... + 751205.

It is an arithmetic number, because the mean of its divisors is an integer number (15774465).

Almost surely, 2^61595489 is an apocalyptic number.

It is an amenable number.

61595489 is a deficient number, since it is larger than the sum of its proper divisors (1502371).

61595489 is a wasteful number, since it uses less digits than its factorization.

61595489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1502370.

The product of its digits is 388800, while the sum is 47.

The square root of 61595489 is about 7848.2793655680. The cubic root of 61595489 is about 394.9265237470.

The spelling of 61595489 in words is "sixty-one million, five hundred ninety-five thousand, four hundred eighty-nine".