252125571321 has 32 divisors (see below), whose sum is σ = 402293888640. Its totient is φ = 155137896000.

The previous prime is 252125571281. The next prime is 252125571353. The reversal of 252125571321 is 123175521252.

252125571321 is a `hidden beast` number, since 2 + 5 + 212 + 55 + 71 + 321 = 666.

It is not a de Polignac number, because 252125571321 - 2¹¹ = 252125569273 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (252125571521) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3888871 + ... + 3953171.

It is an arithmetic number, because the mean of its divisors is an integer number (12571684020).

Almost surely, 2^252125571321 is an apocalyptic number.

It is an amenable number.

252125571321 is a deficient number, since it is larger than the sum of its proper divisors (150168317319).

252125571321 is a wasteful number, since it uses less digits than its factorization.

252125571321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75494 (or 75488 counting only the distinct ones).

The product of its digits is 42000, while the sum is 36.

The spelling of 252125571321 in words is "two hundred fifty-two billion, one hundred twenty-five million, five hundred seventy-one thousand, three hundred twenty-one".