51224823229 has 4 divisors (see below), whose sum is σ = 51226223580. Its totient is φ = 51223422880.

The previous prime is 51224823227. The next prime is 51224823239. The reversal of 51224823229 is 92232842215.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 42849828004 + 8374995225 = 207002^2 + 91515^2 .

It is a cyclic number.

It is not a de Polignac number, because 51224823229 - 2¹ = 51224823227 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51224823191 and 51224823200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51224823227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 643792 + ... + 718969.

It is an arithmetic number, because the mean of its divisors is an integer number (12806555895).

Almost surely, 2^51224823229 is an apocalyptic number.

It is an amenable number.

51224823229 is a deficient number, since it is larger than the sum of its proper divisors (1400351).

51224823229 is a wasteful number, since it uses less digits than its factorization.

51224823229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1400350.

The product of its digits is 138240, while the sum is 40.

The spelling of 51224823229 in words is "fifty-one billion, two hundred twenty-four million, eight hundred twenty-three thousand, two hundred twenty-nine".