51005011055 has 8 divisors (see below), whose sum is σ = 61296962352. Its totient is φ = 40743376128.

The previous prime is 51005011033. The next prime is 51005011063. The reversal of 51005011055 is 55011050015.

It is a happy number.

51005011055 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 51005011055 - 2¹⁴ = 51004994671 is a prime.

It is a super-2 number, since 2×51005011055² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51005011055.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7575389 + ... + 7582118.

It is an arithmetic number, because the mean of its divisors is an integer number (7662120294).

Almost surely, 2^51005011055 is an apocalyptic number.

51005011055 is a deficient number, since it is larger than the sum of its proper divisors (10291951297).

51005011055 is a wasteful number, since it uses less digits than its factorization.

51005011055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15158185.

The product of its (nonzero) digits is 625, while the sum is 23.

The spelling of 51005011055 in words is "fifty-one billion, five million, eleven thousand, fifty-five".