52123421453 has 4 divisors (see below), whose sum is σ = 52155817980. Its totient is φ = 52091024928.

The previous prime is 52123421431. The next prime is 52123421507. The reversal of 52123421453 is 35412432125.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 37259422729 + 14863998724 = 193027^2 + 121918^2 .

It is a cyclic number.

It is not a de Polignac number, because 52123421453 - 2¹⁶ = 52123355917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52123421423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16195850 + ... + 16199067.

It is an arithmetic number, because the mean of its divisors is an integer number (13038954495).

Almost surely, 2^52123421453 is an apocalyptic number.

It is an amenable number.

52123421453 is a deficient number, since it is larger than the sum of its proper divisors (32396527).

52123421453 is a wasteful number, since it uses less digits than its factorization.

52123421453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32396526.

The product of its digits is 28800, while the sum is 32.

Adding to 52123421453 its reverse (35412432125), we get a palindrome (87535853578).

The spelling of 52123421453 in words is "fifty-two billion, one hundred twenty-three million, four hundred twenty-one thousand, four hundred fifty-three".