252020513 has 4 divisors (see below), whose sum is σ = 252722880. Its totient is φ = 251318148.

The previous prime is 252020501. The next prime is 252020519. The reversal of 252020513 is 315020252.

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 252020513 - 2²⁰ = 250971937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (252020519) 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, 350645 + ... + 351362.

It is an arithmetic number, because the mean of its divisors is an integer number (63180720).

Almost surely, 2^252020513 is an apocalyptic number.

It is an amenable number.

252020513 is a deficient number, since it is larger than the sum of its proper divisors (702367).

252020513 is an equidigital number, since it uses as much as digits as its factorization.

252020513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 702366.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 252020513 is about 15875.1539520094. The cubic root of 252020513 is about 631.6530978568.

Adding to 252020513 its reverse (315020252), we get a palindrome (567040765).

The spelling of 252020513 in words is "two hundred fifty-two million, twenty thousand, five hundred thirteen".