55785335250 has 64 divisors (see below), whose sum is σ = 144041639040. Its totient is φ = 14363115200.

The previous prime is 55785335209. The next prime is 55785335443. The reversal of 55785335250 is 5253358755.

55785335250 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×55785335250² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 55785335250.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1260672 + ... + 1304171.

It is an arithmetic number, because the mean of its divisors is an integer number (2250650610).

Almost surely, 2^55785335250 is an apocalyptic number.

55785335250 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55785335250 is an abundant number, since it is smaller than the sum of its proper divisors (88256303790).

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

55785335250 is a wasteful number, since it uses less digits than its factorization.

55785335250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2564892 (or 2564882 counting only the distinct ones).

The product of its (nonzero) digits is 3150000, while the sum is 48.

The spelling of 55785335250 in words is "fifty-five billion, seven hundred eighty-five million, three hundred thirty-five thousand, two hundred fifty".