51436541857223 has 8 divisors (see below), whose sum is σ = 51499082156880. Its totient is φ = 51374002749120.

The previous prime is 51436541857189. The next prime is 51436541857291. The reversal of 51436541857223 is 32275814563415.

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 51436541857223 - 2²⁰ = 51436540808647 is a prime.

It is a super-2 number, since 2×51436541857223² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51436541857123) 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, 111566408 + ... + 112026498.

It is an arithmetic number, because the mean of its divisors is an integer number (6437385269610).

Almost surely, 2^{51436541857223} is an apocalyptic number.

51436541857223 is a deficient number, since it is larger than the sum of its proper divisors (62540299657).

51436541857223 is a wasteful number, since it uses less digits than its factorization.

51436541857223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 595777.

The product of its digits is 24192000, while the sum is 56.

The spelling of 51436541857223 in words is "fifty-one trillion, four hundred thirty-six billion, five hundred forty-one million, eight hundred fifty-seven thousand, two hundred twenty-three".