550772500 has 60 divisors (see below), whose sum is σ = 1213236640. Its totient is φ = 218700000.

The previous prime is 550772471. The next prime is 550772503. The reversal of 550772500 is 5277055.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550772503) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 376771 + ... + 378229.

Almost surely, 2^550772500 is an apocalyptic number.

550772500 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 550772500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (606618320).

550772500 is an abundant number, since it is smaller than the sum of its proper divisors (662464140).

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

550772500 is a wasteful number, since it uses less digits than its factorization.

550772500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1634 (or 1617 counting only the distinct ones).

The product of its (nonzero) digits is 12250, while the sum is 31.

The square root of 550772500 is about 23468.5427753834. The cubic root of 550772500 is about 819.7046824723.

The spelling of 550772500 in words is "five hundred fifty million, seven hundred seventy-two thousand, five hundred".