550025500 has 24 divisors (see below), whose sum is σ = 1201256784. Its totient is φ = 220010000.

The previous prime is 550025477. The next prime is 550025507. The reversal of 550025500 is 5520055.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550025507) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 549526 + ... + 550525.

It is an arithmetic number, because the mean of its divisors is an integer number (50052366).

Almost surely, 2^550025500 is an apocalyptic number.

550025500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

550025500 is an abundant number, since it is smaller than the sum of its proper divisors (651231284).

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

550025500 is a wasteful number, since it uses less digits than its factorization.

550025500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1100070 (or 1100058 counting only the distinct ones).

The product of its (nonzero) digits is 1250, while the sum is 22.

The square root of 550025500 is about 23452.6224546425. The cubic root of 550025500 is about 819.3339326428. Note that the first 3 decimals are identical.

Adding to 550025500 its reverse (5520055), we get a palindrome (555545555).

Subtracting from 550025500 its reverse (5520055), we obtain a palindrome (544505445).

The spelling of 550025500 in words is "five hundred fifty million, twenty-five thousand, five hundred".