51206354063055 has 32 divisors (see below), whose sum is σ = 92157388950720. Its totient is φ = 27310055494464.

The previous prime is 51206354063023. The next prime is 51206354063071. The reversal of 51206354063055 is 55036045360215.

51206354063055 is a `hidden beast` number, since 5 + 1 + 2 + 0 + 6 + 3 + 5 + 4 + 0 + 630 + 5 + 5 = 666.

It is not a de Polignac number, because 51206354063055 - 2⁵ = 51206354063023 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 51206354063055.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2341386142 + ... + 2341408011.

It is an arithmetic number, because the mean of its divisors is an integer number (2879918404710).

Almost surely, 2^{51206354063055} is an apocalyptic number.

51206354063055 is a deficient number, since it is larger than the sum of its proper divisors (40951034887665).

51206354063055 is an frugal number, since it uses more digits than its factorization.

51206354063055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4682794179 (or 4682794161 counting only the distinct ones).

The product of its (nonzero) digits is 1620000, while the sum is 45.

The spelling of 51206354063055 in words is "fifty-one trillion, two hundred six billion, three hundred fifty-four million, sixty-three thousand, fifty-five".