20058613 has 4 divisors (see below), whose sum is σ = 20485440. Its totient is φ = 19631788.

The previous prime is 20058611. The next prime is 20058631. The reversal of 20058613 is 31685002.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 31685002 = 2 ⋅15842501.

It is a cyclic number.

It is not a de Polignac number, because 20058613 - 2¹ = 20058611 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20058611) 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, 213343 + ... + 213436.

It is an arithmetic number, because the mean of its divisors is an integer number (5121360).

Almost surely, 2^20058613 is an apocalyptic number.

It is an amenable number.

20058613 is a deficient number, since it is larger than the sum of its proper divisors (426827).

20058613 is an equidigital number, since it uses as much as digits as its factorization.

20058613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 426826.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 20058613 is about 4478.6842934058. The cubic root of 20058613 is about 271.7066699762.

The spelling of 20058613 in words is "twenty million, fifty-eight thousand, six hundred thirteen".