53502406443 has 32 divisors (see below), whose sum is σ = 86819342400. Its totient is φ = 32412538368.

The previous prime is 53502406411. The next prime is 53502406453. The reversal of 53502406443 is 34460420535.

53502406443 is a `hidden beast` number, since 5 + 3 + 5 + 0 + 2 + 4 + 0 + 644 + 3 = 666.

It is not a de Polignac number, because 53502406443 - 2⁵ = 53502406411 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 53502406398 and 53502406407.

It is not an unprimeable number, because it can be changed into a prime (53502406453) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1996396 + ... + 2023017.

It is an arithmetic number, because the mean of its divisors is an integer number (2713104450).

Almost surely, 2^53502406443 is an apocalyptic number.

53502406443 is a deficient number, since it is larger than the sum of its proper divisors (33316935957).

53502406443 is a wasteful number, since it uses less digits than its factorization.

53502406443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4019468 (or 4019462 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 36.

Adding to 53502406443 its reverse (34460420535), we get a palindrome (87962826978).

The spelling of 53502406443 in words is "fifty-three billion, five hundred two million, four hundred six thousand, four hundred forty-three".