252404561023 has 8 divisors (see below), whose sum is σ = 272938099392. Its totient is φ = 232502823936.

The previous prime is 252404561011. The next prime is 252404561033. The reversal of 252404561023 is 320165404252.

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 252404561023 - 2²¹ = 252402463871 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 252404561023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252404561033) 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, 157949490 + ... + 157951087.

It is an arithmetic number, because the mean of its divisors is an integer number (34117262424).

Almost surely, 2^252404561023 is an apocalyptic number.

252404561023 is a deficient number, since it is larger than the sum of its proper divisors (20533538369).

252404561023 is a wasteful number, since it uses less digits than its factorization.

252404561023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315900641.

The product of its (nonzero) digits is 57600, while the sum is 34.

Adding to 252404561023 its reverse (320165404252), we get a palindrome (572569965275).

The spelling of 252404561023 in words is "two hundred fifty-two billion, four hundred four million, five hundred sixty-one thousand, twenty-three".