55502778050 has 12 divisors (see below), whose sum is σ = 103235167266. Its totient is φ = 22201111200.

The previous prime is 55502777999. The next prime is 55502778059. The reversal of 55502778050 is 5087720555.

55502778050 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 52887580729 + 2615197321 = 229973^2 + 51139^2 .

It is a junction number, because it is equal to n+sod(n) for n = 55502777992 and 55502778010.

It is not an unprimeable number, because it can be changed into a prime (55502778059) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 555027731 + ... + 555027830.

Almost surely, 2^55502778050 is an apocalyptic number.

55502778050 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55502778050 is a deficient number, since it is larger than the sum of its proper divisors (47732389216).

55502778050 is a wasteful number, since it uses less digits than its factorization.

55502778050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1110055573 (or 1110055568 counting only the distinct ones).

The product of its (nonzero) digits is 490000, while the sum is 44.

The spelling of 55502778050 in words is "fifty-five billion, five hundred two million, seven hundred seventy-eight thousand, fifty".