252481245543 has 24 divisors (see below), whose sum is σ = 366602171936. Its totient is φ = 167442163200.

The previous prime is 252481245491. The next prime is 252481245547. The reversal of 252481245543 is 345542184252.

252481245543 is a `hidden beast` number, since 2 + 5 + 2 + 4 + 81 + 24 + 5 + 543 = 666.

It is not a de Polignac number, because 252481245543 - 2⁶ = 252481245479 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252481245547) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1970238 + ... + 2094468.

Almost surely, 2^252481245543 is an apocalyptic number.

252481245543 is a deficient number, since it is larger than the sum of its proper divisors (114120926393).

252481245543 is a wasteful number, since it uses less digits than its factorization.

252481245543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125415 (or 125412 counting only the distinct ones).

The product of its digits is 1536000, while the sum is 45.

The spelling of 252481245543 in words is "two hundred fifty-two billion, four hundred eighty-one million, two hundred forty-five thousand, five hundred forty-three".