20252013 has 4 divisors (see below), whose sum is σ = 27002688. Its totient is φ = 13501340.

The previous prime is 20251993. The next prime is 20252017. The reversal of 20252013 is 31025202.

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 20252013 - 2⁶ = 20251949 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20251983 and 20252001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20252017) 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, 3375333 + ... + 3375338.

It is an arithmetic number, because the mean of its divisors is an integer number (6750672).

Almost surely, 2^20252013 is an apocalyptic number.

It is an amenable number.

20252013 is a deficient number, since it is larger than the sum of its proper divisors (6750675).

20252013 is an equidigital number, since it uses as much as digits as its factorization.

20252013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6750674.

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 20252013 is about 4500.2236611084. The cubic root of 20252013 is about 272.5771203879.

Adding to 20252013 its reverse (31025202), we get a palindrome (51277215).

The spelling of 20252013 in words is "twenty million, two hundred fifty-two thousand, thirteen".