253455144644 has 24 divisors (see below), whose sum is σ = 487828564608. Its totient is φ = 114490375200.

The previous prime is 253455144643. The next prime is 253455144653. The reversal of 253455144644 is 446441554352.

253455144644 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not an unprimeable number, because it can be changed into a prime (253455144643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51850082 + ... + 51854969.

It is an arithmetic number, because the mean of its divisors is an integer number (20326190192).

Almost surely, 2^253455144644 is an apocalyptic number.

It is an amenable number.

253455144644 is a deficient number, since it is larger than the sum of its proper divisors (234373419964).

253455144644 is a wasteful number, since it uses less digits than its factorization.

253455144644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103705115 (or 103705113 counting only the distinct ones).

The product of its digits is 4608000, while the sum is 47.

Adding to 253455144644 its reverse (446441554352), we get a palindrome (699896698996).

The spelling of 253455144644 in words is "two hundred fifty-three billion, four hundred fifty-five million, one hundred forty-four thousand, six hundred forty-four".