51227103227 has 4 divisors (see below), whose sum is σ = 51275024880. Its totient is φ = 51179181576.

The previous prime is 51227103223. The next prime is 51227103281. The reversal of 51227103227 is 72230172215.

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

It is a cyclic number.

It is not a de Polignac number, because 51227103227 - 2² = 51227103223 is a prime.

It is a super-2 number, since 2×51227103227² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51227103193 and 51227103202.

It is not an unprimeable number, because it can be changed into a prime (51227103223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23959223 + ... + 23961360.

It is an arithmetic number, because the mean of its divisors is an integer number (12818756220).

Almost surely, 2^51227103227 is an apocalyptic number.

51227103227 is a deficient number, since it is larger than the sum of its proper divisors (47921653).

51227103227 is a wasteful number, since it uses less digits than its factorization.

51227103227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47921652.

The product of its (nonzero) digits is 11760, while the sum is 32.

The spelling of 51227103227 in words is "fifty-one billion, two hundred twenty-seven million, one hundred three thousand, two hundred twenty-seven".