252541421325 has 120 divisors (see below), whose sum is σ = 502101388008. Its totient is φ = 125028126720.

The previous prime is 252541421309. The next prime is 252541421333. The reversal of 252541421325 is 523124145252.

252541421325 is a `hidden beast` number, since 2 + 5 + 2 + 5 + 414 + 213 + 25 = 666.

It can be written as a sum of positive squares in 12 ways, for example, as 282340809 + 252259080516 = 16803^2 + 502254^2 .

It is not a de Polignac number, because 252541421325 - 2⁴ = 252541421309 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 252541421325.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 2462779 + ... + 2563271.

Almost surely, 2^252541421325 is an apocalyptic number.

252541421325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

252541421325 is a deficient number, since it is larger than the sum of its proper divisors (249559966683).

252541421325 is a wasteful number, since it uses less digits than its factorization.

252541421325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100605 (or 100591 counting only the distinct ones).

The product of its digits is 96000, while the sum is 36.

Adding to 252541421325 its reverse (523124145252), we get a palindrome (775665566577).

The spelling of 252541421325 in words is "two hundred fifty-two billion, five hundred forty-one million, four hundred twenty-one thousand, three hundred twenty-five".