53144404 has 12 divisors (see below), whose sum is σ = 94981824. Its totient is φ = 26006744.

The previous prime is 53144401. The next prime is 53144407. The reversal of 53144404 is 40444135.

It is an interprime number because it is at equal distance from previous prime (53144401) and next prime (53144407).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53144401) 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, 141154 + ... + 141529.

It is an arithmetic number, because the mean of its divisors is an integer number (7915152).

Almost surely, 2^53144404 is an apocalyptic number.

It is an amenable number.

53144404 is a deficient number, since it is larger than the sum of its proper divisors (41837420).

53144404 is a wasteful number, since it uses less digits than its factorization.

53144404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282734 (or 282732 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 53144404 is about 7290.0208504503. The cubic root of 53144404 is about 375.9694124054.

Adding to 53144404 its reverse (40444135), we get a palindrome (93588539).

The spelling of 53144404 in words is "fifty-three million, one hundred forty-four thousand, four hundred four".