58616561 has 4 divisors (see below), whose sum is σ = 62064612. Its totient is φ = 55168512.

The previous prime is 58616549. The next prime is 58616587. The reversal of 58616561 is 16561685.

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 49350625 + 9265936 = 7025^2 + 3044^2 .

It is a cyclic number.

It is not a de Polignac number, because 58616561 - 2¹⁰ = 58615537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (58616521) 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, 1724000 + ... + 1724033.

It is an arithmetic number, because the mean of its divisors is an integer number (15516153).

Almost surely, 2^58616561 is an apocalyptic number.

It is an amenable number.

58616561 is a deficient number, since it is larger than the sum of its proper divisors (3448051).

58616561 is a wasteful number, since it uses less digits than its factorization.

58616561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3448050.

The product of its digits is 43200, while the sum is 38.

The square root of 58616561 is about 7656.1453094883. The cubic root of 58616561 is about 388.4544596067.

The spelling of 58616561 in words is "fifty-eight million, six hundred sixteen thousand, five hundred sixty-one".