555500000550 has 96 divisors (see below), whose sum is σ = 1505318546304. Its totient is φ = 134448160000.

The previous prime is 555500000501. The next prime is 555500000599. The reversal of 555500000550 is 55000005555.

It is an interprime number because it is at equal distance from previous prime (555500000501) and next prime (555500000599).

It is a super-2 number, since 2×555500000550² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 745225 + ... + 1290875.

It is an arithmetic number, because the mean of its divisors is an integer number (15680401524).

Almost surely, 2^555500000550 is an apocalyptic number.

555500000550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 555500000550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (752659273152).

555500000550 is an abundant number, since it is smaller than the sum of its proper divisors (949818545754).

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

555500000550 is a wasteful number, since it uses less digits than its factorization.

555500000550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 546294 (or 546289 counting only the distinct ones).

The product of its (nonzero) digits is 15625, while the sum is 30.

It can be divided in two parts, 5 and 55500000550, that added together give a palindrome (55500000555).

The spelling of 555500000550 in words is "five hundred fifty-five billion, five hundred million, five hundred fifty", and thus it is an aban number.