51835520550 has 48 divisors (see below), whose sum is σ = 140238649152. Its totient is φ = 12566186400.

The previous prime is 51835520521. The next prime is 51835520551. The reversal of 51835520550 is 5502553815.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 51835520499 and 51835520508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51835520551) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15706084 + ... + 15709383.

It is an arithmetic number, because the mean of its divisors is an integer number (2921638524).

Almost surely, 2^51835520550 is an apocalyptic number.

51835520550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

51835520550 is an abundant number, since it is smaller than the sum of its proper divisors (88403128602).

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

51835520550 is a wasteful number, since it uses less digits than its factorization.

51835520550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31415493 (or 31415488 counting only the distinct ones).

The product of its (nonzero) digits is 150000, while the sum is 39.

The spelling of 51835520550 in words is "fifty-one billion, eight hundred thirty-five million, five hundred twenty thousand, five hundred fifty".