51000551650511 has 8 divisors (see below), whose sum is σ = 51620147180784. Its totient is φ = 50381078288320.

The previous prime is 51000551650501. The next prime is 51000551650513. The reversal of 51000551650511 is 11505615500015.

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 51000551650511 - 2³⁴ = 50983371781327 is a prime.

It is a super-2 number, since 2×51000551650511² (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 (51000551650513) 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, 29701886 + ... + 31372011.

It is an arithmetic number, because the mean of its divisors is an integer number (6452518397598).

Almost surely, 2^{51000551650511} is an apocalyptic number.

51000551650511 is a deficient number, since it is larger than the sum of its proper divisors (619595530273).

51000551650511 is a wasteful number, since it uses less digits than its factorization.

51000551650511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61084041.

The product of its (nonzero) digits is 18750, while the sum is 35.

The spelling of 51000551650511 in words is "fifty-one trillion, five hundred fifty-one million, six hundred fifty thousand, five hundred eleven".