51164625155 has 8 divisors (see below), whose sum is σ = 70168628832. Its totient is φ = 35084314368.

The previous prime is 51164625143. The next prime is 51164625173. The reversal of 51164625155 is 55152646115.

51164625155 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 51164625155 - 2⁴ = 51164625139 is a prime.

It is a Duffinian 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, 730923182 + ... + 730923251.

It is an arithmetic number, because the mean of its divisors is an integer number (8771078604).

Almost surely, 2^51164625155 is an apocalyptic number.

51164625155 is a deficient number, since it is larger than the sum of its proper divisors (19004003677).

51164625155 is a wasteful number, since it uses less digits than its factorization.

51164625155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1461846445.

The product of its digits is 180000, while the sum is 41.

The spelling of 51164625155 in words is "fifty-one billion, one hundred sixty-four million, six hundred twenty-five thousand, one hundred fifty-five".