51122253455417 has 4 divisors (see below), whose sum is σ = 51122831869476. Its totient is φ = 51121675041360.

The previous prime is 51122253455387. The next prime is 51122253455423. The reversal of 51122253455417 is 71455435222115.

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

It can be written as a sum of positive squares in 2 ways, for example, as 26428400412736 + 24693853042681 = 5140856^2 + 4969291^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51122253455417 is a prime.

It is a super-2 number, since 2×51122253455417² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51122253455617) 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, 289074434 + ... + 289251227.

It is an arithmetic number, because the mean of its divisors is an integer number (12780707967369).

Almost surely, 2^{51122253455417} is an apocalyptic number.

It is an amenable number.

51122253455417 is a deficient number, since it is larger than the sum of its proper divisors (578414059).

51122253455417 is an equidigital number, since it uses as much as digits as its factorization.

51122253455417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 578414058.

The product of its digits is 1680000, while the sum is 47.

The spelling of 51122253455417 in words is "fifty-one trillion, one hundred twenty-two billion, two hundred fifty-three million, four hundred fifty-five thousand, four hundred seventeen".