51111056051002 has 8 divisors (see below), whose sum is σ = 76666842688212. Its totient is φ = 25555441821600.

The previous prime is 51111056050993. The next prime is 51111056051023. The reversal of 51111056051002 is 20015065011115.

It can be written as a sum of positive squares in 2 ways, for example, as 45426508126561 + 5684547924441 = 6739919^2 + 2384229^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×51111056051002² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42358249 + ... + 43548172.

Almost surely, 2^{51111056051002} is an apocalyptic number.

51111056051002 is a deficient number, since it is larger than the sum of its proper divisors (25555786637210).

51111056051002 is a wasteful number, since it uses less digits than its factorization.

51111056051002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86203904.

The product of its (nonzero) digits is 1500, while the sum is 28.

The spelling of 51111056051002 in words is "fifty-one trillion, one hundred eleven billion, fifty-six million, fifty-one thousand, two".