51153256196 has 18 divisors (see below), whose sum is σ = 104133414798. Its totient is φ = 21922824000.

The previous prime is 51153256163. The next prime is 51153256211. The reversal of 51153256196 is 69165235115.

It can be written as a sum of positive squares in only one way, i.e., 48164447296 + 2988808900 = 219464^2 + 54670^2 .

It is a super-2 number, since 2×51153256196² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 130492805 + ... + 130493196.

It is an arithmetic number, because the mean of its divisors is an integer number (5785189711).

Almost surely, 2^51153256196 is an apocalyptic number.

It is an amenable number.

51153256196 is an abundant number, since it is smaller than the sum of its proper divisors (52980158602).

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

51153256196 is a wasteful number, since it uses less digits than its factorization.

51153256196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260986019 (or 260986010 counting only the distinct ones).

The product of its digits is 243000, while the sum is 44.

The spelling of 51153256196 in words is "fifty-one billion, one hundred fifty-three million, two hundred fifty-six thousand, one hundred ninety-six".