51655060650 has 48 divisors (see below), whose sum is σ = 128118362400. Its totient is φ = 13773197760.

The previous prime is 51655060637. The next prime is 51655060673. The reversal of 51655060650 is 5606055615.

It is a junction number, because it is equal to n+sod(n) for n = 51655060599 and 51655060608.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2699316 + ... + 2718384.

It is an arithmetic number, because the mean of its divisors is an integer number (2669132550).

Almost surely, 2^51655060650 is an apocalyptic number.

51655060650 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

51655060650 is an abundant number, since it is smaller than the sum of its proper divisors (76463301750).

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

51655060650 is a wasteful number, since it uses less digits than its factorization.

51655060650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37143 (or 37138 counting only the distinct ones).

The product of its (nonzero) digits is 135000, while the sum is 39.

The spelling of 51655060650 in words is "fifty-one billion, six hundred fifty-five million, sixty thousand, six hundred fifty".