51163207229 has 4 divisors (see below), whose sum is σ = 51367044960. Its totient is φ = 50959369500.

The previous prime is 51163207211. The next prime is 51163207243. The reversal of 51163207229 is 92270236115.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 51163207229 - 2²⁰ = 51162158653 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51163207192 and 51163207201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51163207289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101918489 + ... + 101918990.

It is an arithmetic number, because the mean of its divisors is an integer number (12841761240).

Almost surely, 2^51163207229 is an apocalyptic number.

It is an amenable number.

51163207229 is a deficient number, since it is larger than the sum of its proper divisors (203837731).

51163207229 is a wasteful number, since it uses less digits than its factorization.

51163207229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203837730.

The product of its (nonzero) digits is 45360, while the sum is 38.

The spelling of 51163207229 in words is "fifty-one billion, one hundred sixty-three million, two hundred seven thousand, two hundred twenty-nine".