51113025342 has 24 divisors (see below), whose sum is σ = 111760900680. Its totient is φ = 16881365520.

The previous prime is 51113025253. The next prime is 51113025361. The reversal of 51113025342 is 24352031115.

51113025342 is a `hidden beast` number, since 5 + 1 + 11 + 302 + 5 + 342 = 666.

It is a super-2 number, since 2×51113025342² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13023784 + ... + 13027707.

It is an arithmetic number, because the mean of its divisors is an integer number (4656704195).

Almost surely, 2^51113025342 is an apocalyptic number.

51113025342 is an abundant number, since it is smaller than the sum of its proper divisors (60647875338).

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

51113025342 is a wasteful number, since it uses less digits than its factorization.

51113025342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26051608 (or 26051605 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

Adding to 51113025342 its reverse (24352031115), we get a palindrome (75465056457).

It can be divided in two parts, 5111302 and 5342, that added together give a square (5116644 = 2262²).

The spelling of 51113025342 in words is "fifty-one billion, one hundred thirteen million, twenty-five thousand, three hundred forty-two".