53144144 has 20 divisors (see below), whose sum is σ = 103490400. Its totient is φ = 26436960.

The previous prime is 53144141. The next prime is 53144167. The reversal of 53144144 is 44144135.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53144141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5162 + ... + 11529.

It is an arithmetic number, because the mean of its divisors is an integer number (5174520).

Almost surely, 2^53144144 is an apocalyptic number.

It is an amenable number.

53144144 is a deficient number, since it is larger than the sum of its proper divisors (50346256).

53144144 is a wasteful number, since it uses less digits than its factorization.

53144144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16898 (or 16892 counting only the distinct ones).

The product of its digits is 3840, while the sum is 26.

The square root of 53144144 is about 7290.0030178320. The cubic root of 53144144 is about 375.9687992821.

Adding to 53144144 its reverse (44144135), we get a palindrome (97288279).

Subtracting from 53144144 its reverse (44144135), we obtain a palindrome (9000009).

The spelling of 53144144 in words is "fifty-three million, one hundred forty-four thousand, one hundred forty-four".