51055117 has 8 divisors (see below), whose sum is σ = 52012800. Its totient is φ = 50106144.

The previous prime is 51055099. The next prime is 51055129. The reversal of 51055117 is 71155015.

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 51055117 - 2⁷ = 51054989 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51055091 and 51055100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51055217) 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, 10308 + ... + 14434.

It is an arithmetic number, because the mean of its divisors is an integer number (6501600).

Almost surely, 2^51055117 is an apocalyptic number.

It is an amenable number.

51055117 is a deficient number, since it is larger than the sum of its proper divisors (957683).

51055117 is a wasteful number, since it uses less digits than its factorization.

51055117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4355.

The product of its (nonzero) digits is 875, while the sum is 25.

The square root of 51055117 is about 7145.2863483558. The cubic root of 51055117 is about 370.9765219823.

The spelling of 51055117 in words is "fifty-one million, fifty-five thousand, one hundred seventeen".