51551611001 has 8 divisors (see below), whose sum is σ = 56915689824. Its totient is φ = 46300460320.

The previous prime is 51551610973. The next prime is 51551611003. The reversal of 51551611001 is 10011615515.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51551611001 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (51551611003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28231076 + ... + 28232901.

It is an arithmetic number, because the mean of its divisors is an integer number (7114461228).

Almost surely, 2^51551611001 is an apocalyptic number.

It is an amenable number.

51551611001 is a deficient number, since it is larger than the sum of its proper divisors (5364078823).

51551611001 is a wasteful number, since it uses less digits than its factorization.

51551611001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56464071.

The product of its (nonzero) digits is 750, while the sum is 26.

The spelling of 51551611001 in words is "fifty-one billion, five hundred fifty-one million, six hundred eleven thousand, one".