51122706 has 16 divisors (see below), whose sum is σ = 108260064. Its totient is φ = 16038464.

The previous prime is 51122693. The next prime is 51122759. The reversal of 51122706 is 60722115.

It is a super-2 number, since 2×51122706² = 5227062137524872, which contains 22 as substring.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 250500 + ... + 250703.

It is an arithmetic number, because the mean of its divisors is an integer number (6766254).

Almost surely, 2^51122706 is an apocalyptic number.

51122706 is an abundant number, since it is smaller than the sum of its proper divisors (57137358).

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

51122706 is a wasteful number, since it uses less digits than its factorization.

51122706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 501225.

The product of its (nonzero) digits is 840, while the sum is 24.

The square root of 51122706 is about 7150.0144055799. The cubic root of 51122706 is about 371.1401547847.

The spelling of 51122706 in words is "fifty-one million, one hundred twenty-two thousand, seven hundred six".