51153153212 has 24 divisors (see below), whose sum is σ = 102311131104. Its totient is φ = 21921746112.

The previous prime is 51153153211. The next prime is 51153153217. The reversal of 51153153212 is 21235135115.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51153153211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1031858 + ... + 1080294.

It is an arithmetic number, because the mean of its divisors is an integer number (4262963796).

Almost surely, 2^51153153212 is an apocalyptic number.

It is an amenable number.

51153153212 is an abundant number, since it is smaller than the sum of its proper divisors (51157977892).

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

51153153212 is a wasteful number, since it uses less digits than its factorization.

51153153212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86165 (or 86163 counting only the distinct ones).

The product of its digits is 4500, while the sum is 29.

Adding to 51153153212 its reverse (21235135115), we get a palindrome (72388288327).

The spelling of 51153153212 in words is "fifty-one billion, one hundred fifty-three million, one hundred fifty-three thousand, two hundred twelve".