52521342453 has 6 divisors (see below), whose sum is σ = 75864161334. Its totient is φ = 35014228296.

The previous prime is 52521342449. The next prime is 52521342463. The reversal of 52521342453 is 35424312525.

52521342453 is a `hidden beast` number, since 52 + 521 + 3 + 42 + 45 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 52211336004 + 310006449 = 228498^2 + 17607^2 .

It is not a de Polignac number, because 52521342453 - 2² = 52521342449 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52521342463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2917852350 + ... + 2917852367.

It is an arithmetic number, because the mean of its divisors is an integer number (12644026889).

Almost surely, 2^52521342453 is an apocalyptic number.

It is an amenable number.

52521342453 is a deficient number, since it is larger than the sum of its proper divisors (23342818881).

52521342453 is a wasteful number, since it uses less digits than its factorization.

52521342453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5835704723 (or 5835704720 counting only the distinct ones).

The product of its digits is 144000, while the sum is 36.

Adding to 52521342453 its reverse (35424312525), we get a palindrome (87945654978).

The spelling of 52521342453 in words is "fifty-two billion, five hundred twenty-one million, three hundred forty-two thousand, four hundred fifty-three".