58912561 has 2 divisors, whose sum is σ = 58912562. Its totient is φ = 58912560.

The previous prime is 58912549. The next prime is 58912577. The reversal of 58912561 is 16521985.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 46662561 + 12250000 = 6831^2 + 3500^2 .

It is a cyclic number.

It is not a de Polignac number, because 58912561 - 2²⁵ = 25358129 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 58912561.

It is not a weakly prime, because it can be changed into another prime (58912501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 29456280 + 29456281.

It is an arithmetic number, because the mean of its divisors is an integer number (29456281).

Almost surely, 2^58912561 is an apocalyptic number.

It is an amenable number.

58912561 is a deficient number, since it is larger than the sum of its proper divisors (1).

58912561 is an equidigital number, since it uses as much as digits as its factorization.

58912561 is an evil number, because the sum of its binary digits is even.

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

The square root of 58912561 is about 7675.4518433770. The cubic root of 58912561 is about 389.1072302813.

The spelling of 58912561 in words is "fifty-eight million, nine hundred twelve thousand, five hundred sixty-one".