51023737531055 has 4 divisors (see below), whose sum is σ = 61228485037272. Its totient is φ = 40818990024840.

The previous prime is 51023737531051. The next prime is 51023737531073. The reversal of 51023737531055 is 55013573732015.

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

It is not a de Polignac number, because 51023737531055 - 2² = 51023737531051 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51023737531051) 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, 5102373753101 + ... + 5102373753110.

It is an arithmetic number, because the mean of its divisors is an integer number (15307121259318).

Almost surely, 2^{51023737531055} is an apocalyptic number.

51023737531055 is a deficient number, since it is larger than the sum of its proper divisors (10204747506217).

51023737531055 is a wasteful number, since it uses less digits than its factorization.

51023737531055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10204747506216.

The product of its (nonzero) digits is 1653750, while the sum is 47.

The spelling of 51023737531055 in words is "fifty-one trillion, twenty-three billion, seven hundred thirty-seven million, five hundred thirty-one thousand, fifty-five".