51255423412 has 48 divisors (see below), whose sum is σ = 92320542720. Its totient is φ = 24890392800.

The previous prime is 51255423407. The next prime is 51255423431. The reversal of 51255423412 is 21432455215.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10923987 + ... + 10928677.

It is an arithmetic number, because the mean of its divisors is an integer number (1923344640).

Almost surely, 2^51255423412 is an apocalyptic number.

It is an amenable number.

51255423412 is a deficient number, since it is larger than the sum of its proper divisors (41065119308).

51255423412 is a wasteful number, since it uses less digits than its factorization.

51255423412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5332 (or 5330 counting only the distinct ones).

The product of its digits is 48000, while the sum is 34.

Adding to 51255423412 its reverse (21432455215), we get a palindrome (72687878627).

The spelling of 51255423412 in words is "fifty-one billion, two hundred fifty-five million, four hundred twenty-three thousand, four hundred twelve".