252021513 has 8 divisors (see below), whose sum is σ = 347616000. Its totient is φ = 162220688.

The previous prime is 252021499. The next prime is 252021521. The reversal of 252021513 is 315120252.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 252021513 - 2⁸ = 252021257 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 252021513.

It is not an unprimeable number, because it can be changed into a prime (252021593) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1448313 + ... + 1448486.

It is an arithmetic number, because the mean of its divisors is an integer number (43452000).

Almost surely, 2^252021513 is an apocalyptic number.

It is an amenable number.

252021513 is a deficient number, since it is larger than the sum of its proper divisors (95594487).

252021513 is a wasteful number, since it uses less digits than its factorization.

252021513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2896831.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 252021513 is about 15875.1854477357. The cubic root of 252021513 is about 631.6539333076.

Adding to 252021513 its reverse (315120252), we get a palindrome (567141765).

The spelling of 252021513 in words is "two hundred fifty-two million, twenty-one thousand, five hundred thirteen".