51001553212 has 12 divisors (see below), whose sum is σ = 89256078520. Its totient is φ = 25499816496.

The previous prime is 51001553203. The next prime is 51001553237. The reversal of 51001553212 is 21235510015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 113043 + ... + 338794.

Almost surely, 2^51001553212 is an apocalyptic number.

It is an amenable number.

51001553212 is a deficient number, since it is larger than the sum of its proper divisors (38254525308).

51001553212 is a wasteful number, since it uses less digits than its factorization.

51001553212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 480060 (or 480058 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 25.

The spelling of 51001553212 in words is "fifty-one billion, one million, five hundred fifty-three thousand, two hundred twelve".