51025402134 has 96 divisors (see below), whose sum is σ = 130505416704. Its totient is φ = 14099641920.

The previous prime is 51025402121. The next prime is 51025402147. The reversal of 51025402134 is 43120452015.

51025402134 is a `hidden beast` number, since 5 + 102 + 540 + 2 + 13 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (51025402121) and next prime (51025402147).

It is a junction number, because it is equal to n+sod(n) for n = 51025402098 and 51025402107.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8641027 + ... + 8646929.

It is an arithmetic number, because the mean of its divisors is an integer number (1359431424).

Almost surely, 2^51025402134 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51025402134, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65252708352).

51025402134 is an abundant number, since it is smaller than the sum of its proper divisors (79480014570).

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

51025402134 is a wasteful number, since it uses less digits than its factorization.

51025402134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8162 (or 8159 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

Adding to 51025402134 its reverse (43120452015), we get a palindrome (94145854149).

The spelling of 51025402134 in words is "fifty-one billion, twenty-five million, four hundred two thousand, one hundred thirty-four".