52435304021 has 4 divisors (see below), whose sum is σ = 54715099872. Its totient is φ = 50155508172.

The previous prime is 52435304011. The next prime is 52435304069. The reversal of 52435304021 is 12040353425.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52435304021 is a prime.

It is a super-2 number, since 2×52435304021² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52435304011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1139897891 + ... + 1139897936.

It is an arithmetic number, because the mean of its divisors is an integer number (13678774968).

Almost surely, 2^52435304021 is an apocalyptic number.

It is an amenable number.

52435304021 is a deficient number, since it is larger than the sum of its proper divisors (2279795851).

52435304021 is a wasteful number, since it uses less digits than its factorization.

52435304021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2279795850.

The product of its (nonzero) digits is 14400, while the sum is 29.

Adding to 52435304021 its reverse (12040353425), we get a palindrome (64475657446).

The spelling of 52435304021 in words is "fifty-two billion, four hundred thirty-five million, three hundred four thousand, twenty-one".