51025504652 has 6 divisors (see below), whose sum is σ = 89294633148. Its totient is φ = 25512752324.

The previous prime is 51025504637. The next prime is 51025504657. The reversal of 51025504652 is 25640552015.

It is a super-2 number, since 2×51025504652² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51025504657) by changing a digit.

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 as a sum of consecutive naturals, namely, 6378188078 + ... + 6378188085.

It is an arithmetic number, because the mean of its divisors is an integer number (14882438858).

Almost surely, 2^51025504652 is an apocalyptic number.

It is an amenable number.

51025504652 is a deficient number, since it is larger than the sum of its proper divisors (38269128496).

51025504652 is a wasteful number, since it uses less digits than its factorization.

51025504652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12756376167 (or 12756376165 counting only the distinct ones).

The product of its (nonzero) digits is 60000, while the sum is 35.

The spelling of 51025504652 in words is "fifty-one billion, twenty-five million, five hundred four thousand, six hundred fifty-two".