52531554241440 has 144 divisors (see below), whose sum is σ = 179409796511400. Its totient is φ = 13997015771136.

The previous prime is 52531554241423. The next prime is 52531554241451. The reversal of 52531554241440 is 4414245513525.

52531554241440 is a `hidden beast` number, since 5 + 2 + 5 + 3 + 155 + 42 + 414 + 40 = 666.

52531554241440 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 4 ways, for example, as 52531242648336 + 311593104 = 7247844^2 + 17652^2 .

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13071675 + ... + 16611194.

Almost surely, 2^{52531554241440} is an apocalyptic number.

It is an amenable number.

52531554241440 is an abundant number, since it is smaller than the sum of its proper divisors (126878242269960).

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

52531554241440 is a wasteful number, since it uses less digits than its factorization.

52531554241440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29684119 (or 29684108 counting only the distinct ones).

The product of its (nonzero) digits is 1920000, while the sum is 45.

Adding to 52531554241440 its reverse (4414245513525), we get a palindrome (56945799754965).

The spelling of 52531554241440 in words is "fifty-two trillion, five hundred thirty-one billion, five hundred fifty-four million, two hundred forty-one thousand, four hundred forty".