51121627 has 4 divisors (see below), whose sum is σ = 52086240. Its totient is φ = 50157016.

The previous prime is 51121613. The next prime is 51121649. The reversal of 51121627 is 72612115.

51121627 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51121627 is a prime.

It is a super-2 number, since 2×51121627² = 5226841494254258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51121657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 482227 + ... + 482332.

It is an arithmetic number, because the mean of its divisors is an integer number (13021560).

Almost surely, 2^51121627 is an apocalyptic number.

51121627 is a deficient number, since it is larger than the sum of its proper divisors (964613).

51121627 is an equidigital number, since it uses as much as digits as its factorization.

51121627 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 964612.

The product of its digits is 840, while the sum is 25.

The square root of 51121627 is about 7149.9389507883. The cubic root of 51121627 is about 371.1375436616.

The spelling of 51121627 in words is "fifty-one million, one hundred twenty-one thousand, six hundred twenty-seven".