5555777550 has 48 divisors (see below), whose sum is σ = 14150729712. Its totient is φ = 1441497600.

The previous prime is 5555777527. The next prime is 5555777651. The reversal of 5555777550 is 557775555.

It is a junction number, because it is equal to n+sod(n) for n = 5555777493 and 5555777502.

It is a congruent number.

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, 494971 + ... + 506070.

It is an arithmetic number, because the mean of its divisors is an integer number (294806869).

Almost surely, 2^5555777550 is an apocalyptic number.

5555777550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

5555777550 is an abundant number, since it is smaller than the sum of its proper divisors (8594952162).

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

5555777550 is a wasteful number, since it uses less digits than its factorization.

5555777550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1001093 (or 1001088 counting only the distinct ones).

The product of its (nonzero) digits is 5359375, while the sum is 51.

The square root of 5555777550 is about 74537.0884191219. The cubic root of 5555777550 is about 1771.1212054200.

It can be divided in two parts, 5 and 555777550, that added together give a palindrome (555777555).

The spelling of 5555777550 in words is "five billion, five hundred fifty-five million, seven hundred seventy-seven thousand, five hundred fifty".