51612272152 has 16 divisors (see below), whose sum is σ = 110597726160. Its totient is φ = 22119545184.

The previous prime is 51612272147. The next prime is 51612272183. The reversal of 51612272152 is 25127221615.

It is a super-2 number, since 2×51612272152² (a number of 22 digits) contains 22 as substring.

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, 460823803 + ... + 460823914.

It is an arithmetic number, because the mean of its divisors is an integer number (6912357885).

Almost surely, 2^51612272152 is an apocalyptic number.

It is an amenable number.

51612272152 is an abundant number, since it is smaller than the sum of its proper divisors (58985454008).

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

51612272152 is a wasteful number, since it uses less digits than its factorization.

51612272152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 921647730 (or 921647726 counting only the distinct ones).

The product of its digits is 16800, while the sum is 34.

Adding to 51612272152 its reverse (25127221615), we get a palindrome (76739493767).

The spelling of 51612272152 in words is "fifty-one billion, six hundred twelve million, two hundred seventy-two thousand, one hundred fifty-two".