51253400122 has 8 divisors (see below), whose sum is σ = 76963759200. Its totient is φ = 25598813724.

The previous prime is 51253400111. The next prime is 51253400129. The reversal of 51253400122 is 22100435215.

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

It is a super-2 number, since 2×51253400122² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51253400129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13940872 + ... + 13944547.

It is an arithmetic number, because the mean of its divisors is an integer number (9620469900).

Almost surely, 2^51253400122 is an apocalyptic number.

51253400122 is a deficient number, since it is larger than the sum of its proper divisors (25710359078).

51253400122 is a wasteful number, since it uses less digits than its factorization.

51253400122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27886340.

The product of its (nonzero) digits is 2400, while the sum is 25.

Adding to 51253400122 its reverse (22100435215), we get a palindrome (73353835337).

The spelling of 51253400122 in words is "fifty-one billion, two hundred fifty-three million, four hundred thousand, one hundred twenty-two".