58018861 has 4 divisors (see below), whose sum is σ = 58062492. Its totient is φ = 57975232.

The previous prime is 58018859. The next prime is 58018871. The reversal of 58018861 is 16881085.

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 47817225 + 10201636 = 6915^2 + 3194^2 .

It is a cyclic number.

It is not a de Polignac number, because 58018861 - 2¹ = 58018859 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 58018861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (58018871) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19756 + ... + 22501.

It is an arithmetic number, because the mean of its divisors is an integer number (14515623).

Almost surely, 2^58018861 is an apocalyptic number.

It is an amenable number.

58018861 is a deficient number, since it is larger than the sum of its proper divisors (43631).

58018861 is a wasteful number, since it uses less digits than its factorization.

58018861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43630.

The product of its (nonzero) digits is 15360, while the sum is 37.

The square root of 58018861 is about 7617.0112905260. The cubic root of 58018861 is about 387.1296184834.

The spelling of 58018861 in words is "fifty-eight million, eighteen thousand, eight hundred sixty-one".