53043533331440 has 40 divisors (see below), whose sum is σ = 123391919242080. Its totient is φ = 21206109376256.

The previous prime is 53043533331389. The next prime is 53043533331521. The reversal of 53043533331440 is 4413333534035.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 176473220 + ... + 176773539.

It is an arithmetic number, because the mean of its divisors is an integer number (3084797981052).

Almost surely, 2^{53043533331440} is an apocalyptic number.

It is an amenable number.

53043533331440 is an abundant number, since it is smaller than the sum of its proper divisors (70348385910640).

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

53043533331440 is a wasteful number, since it uses less digits than its factorization.

53043533331440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 353248649 (or 353248643 counting only the distinct ones).

The product of its (nonzero) digits is 1166400, while the sum is 41.

Adding to 53043533331440 its reverse (4413333534035), we get a palindrome (57456866865475).

The spelling of 53043533331440 in words is "fifty-three trillion, forty-three billion, five hundred thirty-three million, three hundred thirty-one thousand, four hundred forty".