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552800257 = 2412293777
BaseRepresentation
bin100000111100110…
…001000000000001
31102112012011101121
4200330301000001
52113004102012
6130504232241
716461503362
oct4074610001
91375164347
10552800257
11264050019
1213516b681
138a6b0c59
14535bbb69
15337e7a07
hex20f31001

552800257 has 4 divisors (see below), whose sum is σ = 555094276. Its totient is φ = 550506240.

The previous prime is 552800251. The next prime is 552800263. The reversal of 552800257 is 752008255.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (552800251) and next prime (552800263).

It can be written as a sum of positive squares in 2 ways, for example, as 379509361 + 173290896 = 19481^2 + 13164^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-552800257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (552800251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1146648 + ... + 1147129.

It is an arithmetic number, because the mean of its divisors is an integer number (138773569).

Almost surely, 2552800257 is an apocalyptic number.

It is an amenable number.

552800257 is a deficient number, since it is larger than the sum of its proper divisors (2294019).

552800257 is a wasteful number, since it uses less digits than its factorization.

552800257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2294018.

The product of its (nonzero) digits is 28000, while the sum is 34.

The square root of 552800257 is about 23511.7046808606. The cubic root of 552800257 is about 820.7094083991.

The spelling of 552800257 in words is "five hundred fifty-two million, eight hundred thousand, two hundred fifty-seven".

Divisors: 1 241 2293777 552800257