550378500 has 384 divisors, whose sum is σ = 1992646656. Its totient is φ = 115315200.

The previous prime is 550378489. The next prime is 550378511. The reversal of 550378500 is 5873055.

It is an interprime number because it is at equal distance from previous prime (550378489) and next prime (550378511).

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 10384474 + ... + 10384526.

It is an arithmetic number, because the mean of its divisors is an integer number (5189184).

Almost surely, 2^550378500 is an apocalyptic number.

550378500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 550378500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (996323328).

550378500 is an abundant number, since it is smaller than the sum of its proper divisors (1442268156).

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

550378500 is a wasteful number, since it uses less digits than its factorization.

550378500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148 (or 136 counting only the distinct ones).

The product of its (nonzero) digits is 21000, while the sum is 33.

The square root of 550378500 is about 23460.1470583626. The cubic root of 550378500 is about 819.5091748370.

Subtracting from 550378500 its reverse (5873055), we obtain a palindrome (544505445).

The spelling of 550378500 in words is "five hundred fifty million, three hundred seventy-eight thousand, five hundred".