20067513 has 4 divisors (see below), whose sum is σ = 26756688. Its totient is φ = 13378340.

The previous prime is 20067479. The next prime is 20067521. The reversal of 20067513 is 31576002.

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 20067513 - 2⁹ = 20067001 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20067533) 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, 3344583 + ... + 3344588.

It is an arithmetic number, because the mean of its divisors is an integer number (6689172).

Almost surely, 2^20067513 is an apocalyptic number.

It is an amenable number.

20067513 is a deficient number, since it is larger than the sum of its proper divisors (6689175).

20067513 is an equidigital number, since it uses as much as digits as its factorization.

20067513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6689174.

The product of its (nonzero) digits is 1260, while the sum is 24.

The square root of 20067513 is about 4479.6777785908. The cubic root of 20067513 is about 271.7468494210.

The spelling of 20067513 in words is "twenty million, sixty-seven thousand, five hundred thirteen".