51923006087 has 4 divisors (see below), whose sum is σ = 51967653000. Its totient is φ = 51878359176.

The previous prime is 51923006071. The next prime is 51923006101. The reversal of 51923006087 is 78060032915.

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

It is a cyclic number.

It is not a de Polignac number, because 51923006087 - 2⁴ = 51923006071 is a prime.

It is a super-2 number, since 2×51923006087² (a number of 22 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 (51923003087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22321712 + ... + 22324037.

It is an arithmetic number, because the mean of its divisors is an integer number (12991913250).

Almost surely, 2^51923006087 is an apocalyptic number.

51923006087 is a deficient number, since it is larger than the sum of its proper divisors (44646913).

51923006087 is a wasteful number, since it uses less digits than its factorization.

51923006087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44646912.

The product of its (nonzero) digits is 90720, while the sum is 41.

The spelling of 51923006087 in words is "fifty-one billion, nine hundred twenty-three million, six thousand, eighty-seven".