51605702000 has 40 divisors (see below), whose sum is σ = 124782592272. Its totient is φ = 20642280000.

The previous prime is 51605701981. The next prime is 51605702033. The reversal of 51605702000 is 20750615.

It is a tau number, because it is divible by the number of its divisors (40).

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, 12899426 + ... + 12903425.

Almost surely, 2^51605702000 is an apocalyptic number.

51605702000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

51605702000 is an abundant number, since it is smaller than the sum of its proper divisors (73176890272).

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

51605702000 is a wasteful number, since it uses less digits than its factorization.

51605702000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25802874 (or 25802858 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 26.

The spelling of 51605702000 in words is "fifty-one billion, six hundred five million, seven hundred two thousand".