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553161061 = 647854963
BaseRepresentation
bin100000111110001…
…001000101100101
31102112212111022201
4200332021011211
52113102123221
6130520054501
716464535315
oct4076110545
91375774281
10553161061
11264277102
12135304431
138a7a924b
1453673445
1533869891
hex20f89165

553161061 has 4 divisors (see below), whose sum is σ = 554016672. Its totient is φ = 552305452.

The previous prime is 553161029. The next prime is 553161067. The reversal of 553161061 is 160161355.

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 553161061 - 25 = 553161029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (553161067) 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, 426835 + ... + 428128.

It is an arithmetic number, because the mean of its divisors is an integer number (138504168).

Almost surely, 2553161061 is an apocalyptic number.

It is an amenable number.

553161061 is a deficient number, since it is larger than the sum of its proper divisors (855611).

553161061 is an equidigital number, since it uses as much as digits as its factorization.

553161061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 855610.

The product of its (nonzero) digits is 2700, while the sum is 28.

The square root of 553161061 is about 23519.3762884988. The cubic root of 553161061 is about 820.8879242577.

The spelling of 553161061 in words is "five hundred fifty-three million, one hundred sixty-one thousand, sixty-one".

Divisors: 1 647 854963 553161061