51061118 has 4 divisors (see below), whose sum is σ = 76591680. Its totient is φ = 25530558.

The previous prime is 51061111. The next prime is 51061139. The reversal of 51061118 is 81116015.

It is a happy number.

51061118 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 junction number, because it is equal to n+sod(n) for n = 51061093 and 51061102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51061111) 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 as a sum of consecutive naturals, namely, 12765278 + ... + 12765281.

It is an arithmetic number, because the mean of its divisors is an integer number (19147920).

Almost surely, 2^51061118 is an apocalyptic number.

51061118 is a deficient number, since it is larger than the sum of its proper divisors (25530562).

51061118 is a wasteful number, since it uses less digits than its factorization.

51061118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25530561.

The product of its (nonzero) digits is 240, while the sum is 23.

The square root of 51061118 is about 7145.7062632045. The cubic root of 51061118 is about 370.9910562283.

The spelling of 51061118 in words is "fifty-one million, sixty-one thousand, one hundred eighteen".