51253400144 has 40 divisors (see below), whose sum is σ = 104665667040. Its totient is φ = 24246407808.

The previous prime is 51253400137. The next prime is 51253400153. The reversal of 51253400144 is 44100435215.

It is a super-2 number, since 2×51253400144² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125939 + ... + 344045.

It is an arithmetic number, because the mean of its divisors is an integer number (2616641676).

Almost surely, 2^51253400144 is an apocalyptic number.

It is an amenable number.

51253400144 is an abundant number, since it is smaller than the sum of its proper divisors (53412266896).

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

51253400144 is a wasteful number, since it uses less digits than its factorization.

51253400144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218907 (or 218901 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 29.

Adding to 51253400144 its reverse (44100435215), we get a palindrome (95353835359).

The spelling of 51253400144 in words is "fifty-one billion, two hundred fifty-three million, four hundred thousand, one hundred forty-four".