51250022 has 8 divisors (see below), whose sum is σ = 78510816. Its totient is φ = 25079752.

The previous prime is 51250013. The next prime is 51250057. The reversal of 51250022 is 22005215.

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

It is a congruent 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 3 ways as a sum of consecutive naturals, for example, 272513 + ... + 272700.

It is an arithmetic number, because the mean of its divisors is an integer number (9813852).

Almost surely, 2^51250022 is an apocalyptic number.

51250022 is a deficient number, since it is larger than the sum of its proper divisors (27260794).

51250022 is a wasteful number, since it uses less digits than its factorization.

51250022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 545262.

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

The square root of 51250022 is about 7158.9120681847. The cubic root of 51250022 is about 371.4479952226.

Adding to 51250022 its reverse (22005215), we get a palindrome (73255237).

The spelling of 51250022 in words is "fifty-one million, two hundred fifty thousand, twenty-two".