551253500 has 96 divisors (see below), whose sum is σ = 1383782400. Its totient is φ = 187924800.

The previous prime is 551253499. The next prime is 551253503. The reversal of 551253500 is 5352155.

It is a self number, because there is not a number n which added to its sum of digits gives 551253500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551253503) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 836171 + ... + 836829.

It is an arithmetic number, because the mean of its divisors is an integer number (14414400).

Almost surely, 2^551253500 is an apocalyptic number.

551253500 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 551253500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (691891200).

551253500 is an abundant number, since it is smaller than the sum of its proper divisors (832528900).

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

551253500 is a wasteful number, since it uses less digits than its factorization.

551253500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 924 (or 912 counting only the distinct ones).

The product of its (nonzero) digits is 3750, while the sum is 26.

The square root of 551253500 is about 23478.7882992287. The cubic root of 551253500 is about 819.9432342223.

The spelling of 551253500 in words is "five hundred fifty-one million, two hundred fifty-three thousand, five hundred".