252540404523 has 24 divisors (see below), whose sum is σ = 403881905856. Its totient is φ = 150770386800.

The previous prime is 252540404507. The next prime is 252540404527. The reversal of 252540404523 is 325404045252.

252540404523 is a `hidden beast` number, since 2 + 52 + 5 + 40 + 40 + 4 + 523 = 666.

252540404523 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 252540404523 - 2⁴ = 252540404507 is a prime.

It is not an unprimeable number, because it can be changed into a prime (252540404527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19030033 + ... + 19043298.

It is an arithmetic number, because the mean of its divisors is an integer number (16828412744).

Almost surely, 2^252540404523 is an apocalyptic number.

252540404523 is a deficient number, since it is larger than the sum of its proper divisors (151341501333).

252540404523 is a wasteful number, since it uses less digits than its factorization.

252540404523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38073415 (or 38073412 counting only the distinct ones).

The product of its (nonzero) digits is 192000, while the sum is 36.

Adding to 252540404523 its reverse (325404045252), we get a palindrome (577944449775).

It can be divided in two parts, 2 and 52540404523, that added together give a palindrome (52540404525).

The spelling of 252540404523 in words is "two hundred fifty-two billion, five hundred forty million, four hundred four thousand, five hundred twenty-three".