51857122 has 16 divisors (see below), whose sum is σ = 79641792. Its totient is φ = 25317040.

The previous prime is 51857119. The next prime is 51857149. The reversal of 51857122 is 22175815.

51857122 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 2×51857122² = 5378322204245768, which contains 22 as substring.

It is an unprimeable number.

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, 13488 + ... + 16900.

It is an arithmetic number, because the mean of its divisors is an integer number (4977612).

Almost surely, 2^51857122 is an apocalyptic number.

51857122 is a deficient number, since it is larger than the sum of its proper divisors (27784670).

51857122 is a wasteful number, since it uses less digits than its factorization.

51857122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3593.

The product of its digits is 5600, while the sum is 31.

The square root of 51857122 is about 7201.1889296143. The cubic root of 51857122 is about 372.9089471487.

The spelling of 51857122 in words is "fifty-one million, eight hundred fifty-seven thousand, one hundred twenty-two".