51253412 has 36 divisors (see below), whose sum is σ = 109836720. Its totient is φ = 20808144.

The previous prime is 51253387. The next prime is 51253421. The reversal of 51253412 is 21435215.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3158 + ... + 10605.

It is an arithmetic number, because the mean of its divisors is an integer number (3051020).

Almost surely, 2^51253412 is an apocalyptic number.

It is an amenable number.

51253412 is an abundant number, since it is smaller than the sum of its proper divisors (58583308).

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

51253412 is a wasteful number, since it uses less digits than its factorization.

51253412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13800 (or 13791 counting only the distinct ones).

The product of its digits is 1200, while the sum is 23.

The square root of 51253412 is about 7159.1488320889. The cubic root of 51253412 is about 371.4561850138.

Adding to 51253412 its reverse (21435215), we get a palindrome (72688627).

The spelling of 51253412 in words is "fifty-one million, two hundred fifty-three thousand, four hundred twelve".