52021224431 has 16 divisors (see below), whose sum is σ = 58110991488. Its totient is φ = 46159764000.

The previous prime is 52021224421. The next prime is 52021224481. The reversal of 52021224431 is 13442212025.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52021224431 is a prime.

It is a super-2 number, since 2×52021224431² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 52021224431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52021224421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 648425 + ... + 724221.

It is an arithmetic number, because the mean of its divisors is an integer number (3631936968).

Almost surely, 2^52021224431 is an apocalyptic number.

52021224431 is a deficient number, since it is larger than the sum of its proper divisors (6089767057).

52021224431 is a wasteful number, since it uses less digits than its factorization.

52021224431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77302.

The product of its (nonzero) digits is 3840, while the sum is 26.

Adding to 52021224431 its reverse (13442212025), we get a palindrome (65463436456).

The spelling of 52021224431 in words is "fifty-two billion, twenty-one million, two hundred twenty-four thousand, four hundred thirty-one".