51122206 has 8 divisors (see below), whose sum is σ = 77828040. Its totient is φ = 25179528.

The previous prime is 51122191. The next prime is 51122231. The reversal of 51122206 is 60222115.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×51122206² = 5226959892612872, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 190621 + ... + 190888.

It is an arithmetic number, because the mean of its divisors is an integer number (9728505).

Almost surely, 2^51122206 is an apocalyptic number.

51122206 is a deficient number, since it is larger than the sum of its proper divisors (26705834).

51122206 is a wasteful number, since it uses less digits than its factorization.

51122206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 381578.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 51122206 is about 7149.9794405299. The cubic root of 51122206 is about 371.1389448157.

Subtracting 51122206 from its reverse (60222115), we obtain a palindrome (9099909).

It can be divided in two parts, 5 and 1122206, that added together give a palindrome (1122211).

The spelling of 51122206 in words is "fifty-one million, one hundred twenty-two thousand, two hundred six".