51625116947 has 8 divisors (see below), whose sum is σ = 53691537600. Its totient is φ = 49594019904.

The previous prime is 51625116937. The next prime is 51625117057. The reversal of 51625116947 is 74961152615.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51625116947 - 2⁶ = 51625116883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51625116937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8827922 + ... + 8833767.

It is an arithmetic number, because the mean of its divisors is an integer number (6711442200).

Almost surely, 2^51625116947 is an apocalyptic number.

51625116947 is a deficient number, since it is larger than the sum of its proper divisors (2066420653).

51625116947 is a wasteful number, since it uses less digits than its factorization.

51625116947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17661805.

The product of its digits is 453600, while the sum is 47.

The spelling of 51625116947 in words is "fifty-one billion, six hundred twenty-five million, one hundred sixteen thousand, nine hundred forty-seven".