52353440 has 24 divisors (see below), whose sum is σ = 123685380. Its totient is φ = 20941312.

The previous prime is 52353349. The next prime is 52353443. The reversal of 52353440 is 4435325.

52353440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 47389456 + 4963984 = 6884^2 + 2228^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52353443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 163445 + ... + 163764.

Almost surely, 2^52353440 is an apocalyptic number.

It is an amenable number.

52353440 is an abundant number, since it is smaller than the sum of its proper divisors (71331940).

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

52353440 is a wasteful number, since it uses less digits than its factorization.

52353440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327224 (or 327216 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 26.

The square root of 52353440 is about 7235.5677040575. The cubic root of 52353440 is about 374.0948599782.

Adding to 52353440 its reverse (4435325), we get a palindrome (56788765).

The spelling of 52353440 in words is "fifty-two million, three hundred fifty-three thousand, four hundred forty".