51205224415552 has 56 divisors (see below), whose sum is σ = 106042446792000. Its totient is φ = 24486166695936.

The previous prime is 51205224415547. The next prime is 51205224415561. The reversal of 51205224415552 is 25551442250215.

It is a super-3 number, since 3×51205224415552³ (a number of 42 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 51205224415499 and 51205224415508.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8647824 + ... + 13311472.

Almost surely, 2^{51205224415552} is an apocalyptic number.

It is an amenable number.

51205224415552 is an abundant number, since it is smaller than the sum of its proper divisors (54837222376448).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51205224415552 is a wasteful number, since it uses less digits than its factorization.

51205224415552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4671143 (or 4671133 counting only the distinct ones).

The product of its (nonzero) digits is 800000, while the sum is 43.

Adding to 51205224415552 its reverse (25551442250215), we get a palindrome (76756666665767).

The spelling of 51205224415552 in words is "fifty-one trillion, two hundred five billion, two hundred twenty-four million, four hundred fifteen thousand, five hundred fifty-two".