51222127 has 16 divisors (see below), whose sum is σ = 59281920. Its totient is φ = 43797600.

The previous prime is 51222121. The next prime is 51222163. The reversal of 51222127 is 72122215.

It is not a de Polignac number, because 51222127 - 2¹¹ = 51220079 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51222098 and 51222107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51222121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13774 + ... + 17092.

It is an arithmetic number, because the mean of its divisors is an integer number (3705120).

Almost surely, 2^51222127 is an apocalyptic number.

51222127 is a deficient number, since it is larger than the sum of its proper divisors (8059793).

51222127 is a wasteful number, since it uses less digits than its factorization.

51222127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3414.

The product of its digits is 560, while the sum is 22.

The square root of 51222127 is about 7156.9635321133. The cubic root of 51222127 is about 371.3805908789.

The spelling of 51222127 in words is "fifty-one million, two hundred twenty-two thousand, one hundred twenty-seven".