253450444135 has 16 divisors (see below), whose sum is σ = 368035603776. Its totient is φ = 163571378688.

The previous prime is 253450444133. The next prime is 253450444141. The reversal of 253450444135 is 531444054352.

It is a cyclic number.

It is not a de Polignac number, because 253450444135 - 2¹ = 253450444133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253450444133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 212982972 + ... + 212984161.

It is an arithmetic number, because the mean of its divisors is an integer number (23002225236).

Almost surely, 2^253450444135 is an apocalyptic number.

253450444135 is a deficient number, since it is larger than the sum of its proper divisors (114585159641).

253450444135 is a wasteful number, since it uses less digits than its factorization.

253450444135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425967162.

The product of its (nonzero) digits is 576000, while the sum is 40.

Adding to 253450444135 its reverse (531444054352), we get a palindrome (784894498487).

The spelling of 253450444135 in words is "two hundred fifty-three billion, four hundred fifty million, four hundred forty-four thousand, one hundred thirty-five".