51355060236 has 48 divisors (see below), whose sum is σ = 133459120480. Its totient is φ = 17077677120.

The previous prime is 51355060219. The next prime is 51355060247. The reversal of 51355060236 is 63206055315.

51355060236 is a `hidden beast` number, since 5 + 13 + 5 + 5 + 0 + 602 + 36 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 51355060236.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 519271 + ... + 610206.

Almost surely, 2^51355060236 is an apocalyptic number.

It is an amenable number.

51355060236 is an abundant number, since it is smaller than the sum of its proper divisors (82104060244).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51355060236 is a wasteful number, since it uses less digits than its factorization.

51355060236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1129911 (or 1129903 counting only the distinct ones).

The product of its (nonzero) digits is 81000, while the sum is 36.

The spelling of 51355060236 in words is "fifty-one billion, three hundred fifty-five million, sixty thousand, two hundred thirty-six".