253440194522 has 4 divisors (see below), whose sum is σ = 380160291786. Its totient is φ = 126720097260.

The previous prime is 253440194521. The next prime is 253440194573. The reversal of 253440194522 is 225491044352.

253440194522 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 153545638801 + 99894555721 = 391849^2 + 316061^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 253440194522.

It is not an unprimeable number, because it can be changed into a prime (253440194521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63360048629 + ... + 63360048632.

Almost surely, 2^253440194522 is an apocalyptic number.

253440194522 is a deficient number, since it is larger than the sum of its proper divisors (126720097264).

253440194522 is a wasteful number, since it uses less digits than its factorization.

253440194522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126720097263.

The product of its (nonzero) digits is 345600, while the sum is 41.

The spelling of 253440194522 in words is "two hundred fifty-three billion, four hundred forty million, one hundred ninety-four thousand, five hundred twenty-two".