555055005550 has 24 divisors (see below), whose sum is σ = 1032429011832. Its totient is φ = 222016260000.

The previous prime is 555055005539. The next prime is 555055005551. The reversal of 555055005550 is 55500550555.

It is a super-2 number, since 2×555055005550² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (555055005551) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2182020 + ... + 2423080.

It is an arithmetic number, because the mean of its divisors is an integer number (43017875493).

Almost surely, 2^555055005550 is an apocalyptic number.

555055005550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

555055005550 is a deficient number, since it is larger than the sum of its proper divisors (477374006282).

555055005550 is a wasteful number, since it uses less digits than its factorization.

555055005550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287124 (or 287119 counting only the distinct ones).

The product of its (nonzero) digits is 390625, while the sum is 40.

The spelling of 555055005550 in words is "five hundred fifty-five billion, fifty-five million, five thousand, five hundred fifty".