53423444 has 12 divisors (see below), whose sum is σ = 94772244. Its totient is φ = 26345664.

The previous prime is 53423389. The next prime is 53423471. The reversal of 53423444 is 44432435.

It can be written as a sum of positive squares in 2 ways, for example, as 38291344 + 15132100 = 6188^2 + 3890^2 .

It is a super-3 number, since 3×53423444³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91187 + ... + 91770.

It is an arithmetic number, because the mean of its divisors is an integer number (7897687).

Almost surely, 2^53423444 is an apocalyptic number.

It is an amenable number.

53423444 is a deficient number, since it is larger than the sum of its proper divisors (41348800).

53423444 is a wasteful number, since it uses less digits than its factorization.

53423444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183034 (or 183032 counting only the distinct ones).

The product of its digits is 23040, while the sum is 29.

The square root of 53423444 is about 7309.1342852625. The cubic root of 53423444 is about 376.6262857312.

Adding to 53423444 its reverse (44432435), we get a palindrome (97855879).

The spelling of 53423444 in words is "fifty-three million, four hundred twenty-three thousand, four hundred forty-four".