253373753522 has 18 divisors (see below), whose sum is σ = 388370361213. Its totient is φ = 123975038472.

The previous prime is 253373753489. The next prime is 253373753543. The reversal of 253373753522 is 225357373352.

253373753522 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 138317791921 + 115055961601 = 371911^2 + 339199^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=355931.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a Duffinian number.

It is an unprimeable number.

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 8 ways as a sum of consecutive naturals, for example, 33453728 + ... + 33461300.

Almost surely, 2^253373753522 is an apocalyptic number.

253373753522 is a deficient number, since it is larger than the sum of its proper divisors (134996607691).

253373753522 is an frugal number, since it uses more digits than its factorization.

253373753522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15242 (or 7622 counting only the distinct ones).

The product of its digits is 3969000, while the sum is 47.

The spelling of 253373753522 in words is "two hundred fifty-three billion, three hundred seventy-three million, seven hundred fifty-three thousand, five hundred twenty-two".