53352320440 has 32 divisors (see below), whose sum is σ = 120049328880. Its totient is φ = 21339753472.

The previous prime is 53352320407. The next prime is 53352320449. The reversal of 53352320440 is 4402325335.

53352320440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53352320449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1299507 + ... + 1339933.

Almost surely, 2^53352320440 is an apocalyptic number.

It is an amenable number.

53352320440 is an abundant number, since it is smaller than the sum of its proper divisors (66697008440).

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

53352320440 is a wasteful number, since it uses less digits than its factorization.

53352320440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73431 (or 73427 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 31.

Adding to 53352320440 its reverse (4402325335), we get a palindrome (57754645775).

The spelling of 53352320440 in words is "fifty-three billion, three hundred fifty-two million, three hundred twenty thousand, four hundred forty".