53523144 has 24 divisors (see below), whose sum is σ = 144958710. Its totient is φ = 17841024.

The previous prime is 53523121. The next prime is 53523149. The reversal of 53523144 is 44132535.

It can be written as a sum of positive squares in only one way, i.e., 45400644 + 8122500 = 6738^2 + 2850^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is not an unprimeable number, because it can be changed into a prime (53523149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 371617 + ... + 371760.

Almost surely, 2^53523144 is an apocalyptic number.

It is an amenable number.

53523144 is an abundant number, since it is smaller than the sum of its proper divisors (91435566).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53523144 is a wasteful number, since it uses less digits than its factorization.

53523144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 743389 (or 743382 counting only the distinct ones).

The product of its digits is 7200, while the sum is 27.

The square root of 53523144 is about 7315.9513393680. The cubic root of 53523144 is about 376.8604295416.

Adding to 53523144 its reverse (44132535), we get a palindrome (97655679).

The spelling of 53523144 in words is "fifty-three million, five hundred twenty-three thousand, one hundred forty-four".