51222427503 has 24 divisors (see below), whose sum is σ = 77846618880. Its totient is φ = 29862462240.

The previous prime is 51222427493. The next prime is 51222427517. The reversal of 51222427503 is 30572422215.

It is not a de Polignac number, because 51222427503 - 2¹⁸ = 51222165359 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51222427583) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2649063 + ... + 2668328.

It is an arithmetic number, because the mean of its divisors is an integer number (3243609120).

Almost surely, 2^51222427503 is an apocalyptic number.

51222427503 is a deficient number, since it is larger than the sum of its proper divisors (26624191377).

51222427503 is a wasteful number, since it uses less digits than its factorization.

51222427503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5317439 (or 5317426 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 33.

Adding to 51222427503 its reverse (30572422215), we get a palindrome (81794849718).

The spelling of 51222427503 in words is "fifty-one billion, two hundred twenty-two million, four hundred twenty-seven thousand, five hundred three".