58216513 has 4 divisors (see below), whose sum is σ = 61280560. Its totient is φ = 55152468.

The previous prime is 58216511. The next prime is 58216523. The reversal of 58216513 is 31561285.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 58216513 - 2¹ = 58216511 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (58216511) 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, 1531995 + ... + 1532032.

It is an arithmetic number, because the mean of its divisors is an integer number (15320140).

Almost surely, 2^58216513 is an apocalyptic number.

It is an amenable number.

58216513 is a deficient number, since it is larger than the sum of its proper divisors (3064047).

58216513 is a wasteful number, since it uses less digits than its factorization.

58216513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3064046.

The product of its digits is 7200, while the sum is 31.

The square root of 58216513 is about 7629.9746395385. The cubic root of 58216513 is about 387.5687298137.

Adding to 58216513 its reverse (31561285), we get a palindrome (89777798).

The spelling of 58216513 in words is "fifty-eight million, two hundred sixteen thousand, five hundred thirteen".