252121330253 has 16 divisors (see below), whose sum is σ = 271960568880. Its totient is φ = 232345967616.

The previous prime is 252121330249. The next prime is 252121330267. The reversal of 252121330253 is 352033121252.

It can be written as a sum of positive squares in 8 ways, for example, as 195636169 + 251925694084 = 13987^2 + 501922^2 .

It is a cyclic number.

It is not a de Polignac number, because 252121330253 - 2² = 252121330249 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252121330283) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38330501 + ... + 38337077.

It is an arithmetic number, because the mean of its divisors is an integer number (16997535555).

Almost surely, 2^252121330253 is an apocalyptic number.

It is an amenable number.

252121330253 is a deficient number, since it is larger than the sum of its proper divisors (19839238627).

252121330253 is a wasteful number, since it uses less digits than its factorization.

252121330253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10976.

The product of its (nonzero) digits is 10800, while the sum is 29.

The spelling of 252121330253 in words is "two hundred fifty-two billion, one hundred twenty-one million, three hundred thirty thousand, two hundred fifty-three".