52944021 has 24 divisors (see below), whose sum is σ = 82937400. Its totient is φ = 32351616.

The previous prime is 52944019. The next prime is 52944029. The reversal of 52944021 is 12044925.

It can be written as a sum of positive squares in 4 ways, for example, as 1535121 + 51408900 = 1239^2 + 7170^2 .

It is not a de Polignac number, because 52944021 - 2¹ = 52944019 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52944029) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15915 + ... + 18951.

It is an arithmetic number, because the mean of its divisors is an integer number (3455725).

Almost surely, 2^52944021 is an apocalyptic number.

It is an amenable number.

52944021 is a deficient number, since it is larger than the sum of its proper divisors (29993379).

52944021 is a wasteful number, since it uses less digits than its factorization.

52944021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3205 (or 3202 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 52944021 is about 7276.2642200514. The cubic root of 52944021 is about 375.4962815892.

Adding to 52944021 its reverse (12044925), we get a palindrome (64988946).

The spelling of 52944021 in words is "fifty-two million, nine hundred forty-four thousand, twenty-one".