51655048860 has 24 divisors (see below), whose sum is σ = 144634136976. Its totient is φ = 13774679680.

The previous prime is 51655048853. The next prime is 51655048889. The reversal of 51655048860 is 6884055615.

51655048860 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 430458681 + ... + 430458800.

It is an arithmetic number, because the mean of its divisors is an integer number (6026422374).

Almost surely, 2^51655048860 is an apocalyptic number.

It is an amenable number.

51655048860 is an abundant number, since it is smaller than the sum of its proper divisors (92979088116).

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

51655048860 is a wasteful number, since it uses less digits than its factorization.

51655048860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 860917493 (or 860917491 counting only the distinct ones).

The product of its (nonzero) digits is 1152000, while the sum is 48.

The spelling of 51655048860 in words is "fifty-one billion, six hundred fifty-five million, forty-eight thousand, eight hundred sixty".