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550800250 = 253711133171
BaseRepresentation
bin100000110101001…
…000101101111010
31102101102112220021
4200311020231322
52112001102000
6130353321054
716435503430
oct4065105572
91371375807
10550800250
11262a04420
1213456618a
138a160810
145321ad50
153355011a
hex20d48b7a

550800250 has 256 divisors, whose sum is σ = 1449197568. Its totient is φ = 151200000.

The previous prime is 550800193. The next prime is 550800301. The reversal of 550800250 is 52008055.

It is a Harshad number since it is a multiple of its sum of digits (25).

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, 7757715 + ... + 7757785.

It is an arithmetic number, because the mean of its divisors is an integer number (5660928).

Almost surely, 2550800250 is an apocalyptic number.

550800250 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

550800250 is an abundant number, since it is smaller than the sum of its proper divisors (898397318).

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

550800250 is a wasteful number, since it uses less digits than its factorization.

550800250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150 (or 140 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 25.

The square root of 550800250 is about 23469.1339848747. The cubic root of 550800250 is about 819.7184488477.

The spelling of 550800250 in words is "five hundred fifty million, eight hundred thousand, two hundred fifty".