53531444 has 12 divisors (see below), whose sum is σ = 94999968. Its totient is φ = 26388600.

The previous prime is 53531441. The next prime is 53531461. The reversal of 53531444 is 44413535.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53531441) 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, 93962 + ... + 94529.

It is an arithmetic number, because the mean of its divisors is an integer number (7916664).

Almost surely, 2^53531444 is an apocalyptic number.

It is an amenable number.

53531444 is a deficient number, since it is larger than the sum of its proper divisors (41468524).

53531444 is a wasteful number, since it uses less digits than its factorization.

53531444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188566 (or 188564 counting only the distinct ones).

The product of its digits is 14400, while the sum is 29.

The square root of 53531444 is about 7316.5185710145. The cubic root of 53531444 is about 376.8799088400.

Adding to 53531444 its reverse (44413535), we get a palindrome (97944979).

It can be divided in two parts, 535314 and 44, that multiplied together give a triangular number (23553816 = T₆₈₆₃).

The spelling of 53531444 in words is "fifty-three million, five hundred thirty-one thousand, four hundred forty-four".