51551155210 has 16 divisors (see below), whose sum is σ = 92794894056. Its totient is φ = 20619836608.

The previous prime is 51551155163. The next prime is 51551155213. The reversal of 51551155210 is 1255115515.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 25379357481 + 26171797729 = 159309^2 + 161777^2 .

It is not an unprimeable number, because it can be changed into a prime (51551155213) 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, 417804 + ... + 526936.

Almost surely, 2^51551155210 is an apocalyptic number.

51551155210 is a deficient number, since it is larger than the sum of its proper divisors (41243738846).

51551155210 is a wasteful number, since it uses less digits than its factorization.

51551155210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156377.

The product of its (nonzero) digits is 6250, while the sum is 31.

The spelling of 51551155210 in words is "fifty-one billion, five hundred fifty-one million, one hundred fifty-five thousand, two hundred ten".