51055422 has 16 divisors (see below), whose sum is σ = 111393792. Its totient is φ = 15471320.

The previous prime is 51055387. The next prime is 51055427. The reversal of 51055422 is 22455015.

It is a happy number.

51055422 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×51055422² = 5213312231196168, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 51055392 and 51055401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51055427) 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 7 ways as a sum of consecutive naturals, for example, 386718 + ... + 386849.

It is an arithmetic number, because the mean of its divisors is an integer number (6962112).

Almost surely, 2^51055422 is an apocalyptic number.

51055422 is an abundant number, since it is smaller than the sum of its proper divisors (60338370).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51055422 is a wasteful number, since it uses less digits than its factorization.

51055422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 773583.

The product of its (nonzero) digits is 2000, while the sum is 24.

The square root of 51055422 is about 7145.3076910655. The cubic root of 51055422 is about 370.9772607109.

The spelling of 51055422 in words is "fifty-one million, fifty-five thousand, four hundred twenty-two".