51124344042251 has 8 divisors (see below), whose sum is σ = 51206757638400. Its totient is φ = 51041994065320.

The previous prime is 51124344042217. The next prime is 51124344042379. The reversal of 51124344042251 is 15224044342115.

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-51124344042251 is a prime.

It is a super-2 number, since 2×51124344042251² (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 (51124344042451) 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, 14296181 + ... + 17510838.

It is an arithmetic number, because the mean of its divisors is an integer number (6400844704800).

Almost surely, 2^{51124344042251} is an apocalyptic number.

51124344042251 is a deficient number, since it is larger than the sum of its proper divisors (82413596149).

51124344042251 is a wasteful number, since it uses less digits than its factorization.

51124344042251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31809609.

The product of its (nonzero) digits is 153600, while the sum is 38.

Adding to 51124344042251 its reverse (15224044342115), we get a palindrome (66348388384366).

The spelling of 51124344042251 in words is "fifty-one trillion, one hundred twenty-four billion, three hundred forty-four million, forty-two thousand, two hundred fifty-one".