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552513500 = 2253711113127
BaseRepresentation
bin100000111011101…
…010111111011100
31102111122121000222
4200323222333130
52112420413000
6130454140512
716456200350
oct4073527734
91374577028
10552513500
11263974630
12135051738
138a610586
1453545460
153378ca85
hex20eeafdc

552513500 has 192 divisors, whose sum is σ = 1529708544. Its totient is φ = 169344000.

The previous prime is 552513491. The next prime is 552513503. The reversal of 552513500 is 5315255.

It is a self number, because there is not a number n which added to its sum of digits gives 552513500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (552513503) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4350437 + ... + 4350563.

It is an arithmetic number, because the mean of its divisors is an integer number (7967232).

Almost surely, 2552513500 is an apocalyptic number.

552513500 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 552513500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (764854272).

552513500 is an abundant number, since it is smaller than the sum of its proper divisors (977195044).

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

552513500 is a wasteful number, since it uses less digits than its factorization.

552513500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277 (or 265 counting only the distinct ones).

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

The square root of 552513500 is about 23505.6057143823. The cubic root of 552513500 is about 820.5674735439.

Adding to 552513500 its reverse (5315255), we get a palindrome (557828755).

The spelling of 552513500 in words is "five hundred fifty-two million, five hundred thirteen thousand, five hundred".