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552250657 = 778892951
BaseRepresentation
bin100000111010101…
…010110100100001
31102111011020111001
4200322222310201
52112334010112
6130444352001
716454024140
oct4072526441
91374136431
10552250657
11263805102
12134b45601
138a54aa4a
14534b7757
1533739c57
hex20eaad21

552250657 has 4 divisors (see below), whose sum is σ = 631143616. Its totient is φ = 473357700.

The previous prime is 552250651. The next prime is 552250667. The reversal of 552250657 is 756052255.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 552250657 - 227 = 418032929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (552250651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39446469 + ... + 39446482.

It is an arithmetic number, because the mean of its divisors is an integer number (157785904).

Almost surely, 2552250657 is an apocalyptic number.

It is an amenable number.

552250657 is a deficient number, since it is larger than the sum of its proper divisors (78892959).

552250657 is an equidigital number, since it uses as much as digits as its factorization.

552250657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78892958.

The product of its (nonzero) digits is 105000, while the sum is 37.

The square root of 552250657 is about 23500.0139787192. The cubic root of 552250657 is about 820.4373321526.

The spelling of 552250657 in words is "five hundred fifty-two million, two hundred fifty thousand, six hundred fifty-seven".

Divisors: 1 7 78892951 552250657