51000550096 has 20 divisors (see below), whose sum is σ = 101223654084. Its totient is φ = 24878316800.

The previous prime is 51000550091. The next prime is 51000550157. The reversal of 51000550096 is 69005500015.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 26776740496 + 24223809600 = 163636^2 + 155640^2 .

It is a super-2 number, since 2×51000550096² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51000550091) 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, 38871715 + ... + 38873026.

Almost surely, 2^51000550096 is an apocalyptic number.

It is an amenable number.

51000550096 is a deficient number, since it is larger than the sum of its proper divisors (50223103988).

51000550096 is a wasteful number, since it uses less digits than its factorization.

51000550096 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77744790 (or 77744784 counting only the distinct ones).

The product of its (nonzero) digits is 6750, while the sum is 31.

The spelling of 51000550096 in words is "fifty-one billion, five hundred fifty thousand, ninety-six".