52435432431 has 8 divisors (see below), whose sum is σ = 77682122160. Its totient is φ = 34956954936.

The previous prime is 52435432409. The next prime is 52435432447. The reversal of 52435432431 is 13423453425.

52435432431 is a `hidden beast` number, since 52 + 43 + 543 + 24 + 3 + 1 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-52435432431 is a prime.

It is a super-2 number, since 2×52435432431² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52435432531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 971026500 + ... + 971026553.

It is an arithmetic number, because the mean of its divisors is an integer number (9710265270).

Almost surely, 2^52435432431 is an apocalyptic number.

52435432431 is a deficient number, since it is larger than the sum of its proper divisors (25246689729).

52435432431 is a wasteful number, since it uses less digits than its factorization.

52435432431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1942053062 (or 1942053056 counting only the distinct ones).

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

Adding to 52435432431 its reverse (13423453425), we get a palindrome (65858885856).

The spelling of 52435432431 in words is "fifty-two billion, four hundred thirty-five million, four hundred thirty-two thousand, four hundred thirty-one".