58155961 has 4 divisors (see below), whose sum is σ = 58952692. Its totient is φ = 57359232.

The previous prime is 58155899. The next prime is 58155973. The reversal of 58155961 is 16955185.

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 23863225 + 34292736 = 4885^2 + 5856^2 .

It is a cyclic number.

It is not a de Polignac number, because 58155961 - 2¹⁵ = 58123193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (58155761) 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, 398256 + ... + 398401.

It is an arithmetic number, because the mean of its divisors is an integer number (14738173).

Almost surely, 2^58155961 is an apocalyptic number.

It is an amenable number.

58155961 is a deficient number, since it is larger than the sum of its proper divisors (796731).

58155961 is an equidigital number, since it uses as much as digits as its factorization.

58155961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 796730.

The product of its digits is 54000, while the sum is 40.

The square root of 58155961 is about 7626.0055730376. The cubic root of 58155961 is about 387.4343108907.

The spelling of 58155961 in words is "fifty-eight million, one hundred fifty-five thousand, nine hundred sixty-one".