51643625025052 has 24 divisors (see below), whose sum is σ = 90460120962960. Its totient is φ = 25797878067840.

The previous prime is 51643625025049. The next prime is 51643625025119. The reversal of 51643625025052 is 25052052634615.

It is a junction number, because it is equal to n+sod(n) for n = 51643625024993 and 51643625025011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115689402 + ... + 116134942.

It is an arithmetic number, because the mean of its divisors is an integer number (3769171706790).

Almost surely, 2^{51643625025052} is an apocalyptic number.

It is an amenable number.

51643625025052 is a deficient number, since it is larger than the sum of its proper divisors (38816495937908).

51643625025052 is a wasteful number, since it uses less digits than its factorization.

51643625025052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 472341 (or 472339 counting only the distinct ones).

The product of its (nonzero) digits is 2160000, while the sum is 46.

Adding to 51643625025052 its reverse (25052052634615), we get a palindrome (76695677659667).

The spelling of 51643625025052 in words is "fifty-one trillion, six hundred forty-three billion, six hundred twenty-five million, twenty-five thousand, fifty-two".