51925503547 has 4 divisors (see below), whose sum is σ = 54183134160. Its totient is φ = 49667872936.

The previous prime is 51925503527. The next prime is 51925503551. The reversal of 51925503547 is 74530552915.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 51925503547 - 2¹¹ = 51925501499 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51925503497 and 51925503506.

It is not an unprimeable number, because it can be changed into a prime (51925503527) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1128815272 + ... + 1128815317.

It is an arithmetic number, because the mean of its divisors is an integer number (13545783540).

Almost surely, 2^51925503547 is an apocalyptic number.

51925503547 is a deficient number, since it is larger than the sum of its proper divisors (2257630613).

51925503547 is a wasteful number, since it uses less digits than its factorization.

51925503547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2257630612.

The product of its (nonzero) digits is 945000, while the sum is 46.

The spelling of 51925503547 in words is "fifty-one billion, nine hundred twenty-five million, five hundred three thousand, five hundred forty-seven".