252021454413 has 8 divisors (see below), whose sum is σ = 336055213728. Its totient is φ = 168000999024.

The previous prime is 252021454369. The next prime is 252021454417. The reversal of 252021454413 is 314454120252.

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

It is not a de Polignac number, because 252021454413 - 2²⁰ = 252020405837 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252021454417) 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, 3281695 + ... + 3357612.

It is an arithmetic number, because the mean of its divisors is an integer number (42006901716).

Almost surely, 2^252021454413 is an apocalyptic number.

It is an amenable number.

252021454413 is a deficient number, since it is larger than the sum of its proper divisors (84033759315).

252021454413 is a wasteful number, since it uses less digits than its factorization.

252021454413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6651963.

The product of its (nonzero) digits is 38400, while the sum is 33.

Adding to 252021454413 its reverse (314454120252), we get a palindrome (566475574665).

The spelling of 252021454413 in words is "two hundred fifty-two billion, twenty-one million, four hundred fifty-four thousand, four hundred thirteen".