51542331036 has 96 divisors (see below), whose sum is σ = 140172415488. Its totient is φ = 14434817280.

The previous prime is 51542330981. The next prime is 51542331047. The reversal of 51542331036 is 63013324515.

It is a super-2 number, since 2×51542331036² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 51542330988 and 51542331006.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5252911 + ... + 5262713.

It is an arithmetic number, because the mean of its divisors is an integer number (1460129328).

Almost surely, 2^51542331036 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51542331036, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70086207744).

51542331036 is an abundant number, since it is smaller than the sum of its proper divisors (88630084452).

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

51542331036 is a wasteful number, since it uses less digits than its factorization.

51542331036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11051 (or 11049 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 33.

The spelling of 51542331036 in words is "fifty-one billion, five hundred forty-two million, three hundred thirty-one thousand, thirty-six".