51772127 has 4 divisors (see below), whose sum is σ = 56478696. Its totient is φ = 47065560.

The previous prime is 51772067. The next prime is 51772181. The reversal of 51772127 is 72127715.

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 51772127 - 2²⁰ = 50723551 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51772093 and 51772102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51772187) 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, 2353268 + ... + 2353289.

It is an arithmetic number, because the mean of its divisors is an integer number (14119674).

Almost surely, 2^51772127 is an apocalyptic number.

51772127 is a deficient number, since it is larger than the sum of its proper divisors (4706569).

51772127 is a wasteful number, since it uses less digits than its factorization.

51772127 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4706568.

The product of its digits is 6860, while the sum is 32.

The square root of 51772127 is about 7195.2850534221. The cubic root of 51772127 is about 372.7051003287.

The spelling of 51772127 in words is "fifty-one million, seven hundred seventy-two thousand, one hundred twenty-seven".