51500122 has 8 divisors (see below), whose sum is σ = 77347872. Its totient is φ = 25717500.

The previous prime is 51500101. The next prime is 51500147. The reversal of 51500122 is 22100515.

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

It is a junction number, because it is equal to n+sod(n) for n = 51500096 and 51500105.

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, 14254 + ... + 17497.

It is an arithmetic number, because the mean of its divisors is an integer number (9668484).

Almost surely, 2^51500122 is an apocalyptic number.

51500122 is a deficient number, since it is larger than the sum of its proper divisors (25847750).

51500122 is a wasteful number, since it uses less digits than its factorization.

51500122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32564.

The product of its (nonzero) digits is 100, while the sum is 16.

The square root of 51500122 is about 7176.3585473414. The cubic root of 51500122 is about 372.0512368244.

Adding to 51500122 its reverse (22100515), we get a palindrome (73600637).

The spelling of 51500122 in words is "fifty-one million, five hundred thousand, one hundred twenty-two".