51222050 has 24 divisors (see below), whose sum is σ = 103935312. Its totient is φ = 18626000.

The previous prime is 51222047. The next prime is 51222107. The reversal of 51222050 is 5022215.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 46016 + ... + 47115.

It is an arithmetic number, because the mean of its divisors is an integer number (4330638).

Almost surely, 2^51222050 is an apocalyptic number.

51222050 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

51222050 is an abundant number, since it is smaller than the sum of its proper divisors (52713262).

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

51222050 is a wasteful number, since it uses less digits than its factorization.

51222050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93154 (or 93149 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 17.

The square root of 51222050 is about 7156.9581527350. The cubic root of 51222050 is about 371.3804047853.

Adding to 51222050 its reverse (5022215), we get a palindrome (56244265).

It can be divided in two parts, 512 and 22050, that multiplied together give a square (11289600 = 3360²).

The spelling of 51222050 in words is "fifty-one million, two hundred twenty-two thousand, fifty".