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553221041 = 1087508943
BaseRepresentation
bin100000111110010…
…111101110110001
31102112222112121012
4200332113232301
52113111033131
6130521240305
716465205222
oct4076275661
91375875535
10553221041
1126430817a
12135333095
138a7ca639
145368b249
153387c52b
hex20f97bb1

553221041 has 4 divisors (see below), whose sum is σ = 553731072. Its totient is φ = 552711012.

The previous prime is 553220989. The next prime is 553221073. The reversal of 553221041 is 140122355.

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, and also an emirpimes, since its reverse is a distinct semiprime: 140122355 = 528024471.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-553221041 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 553220998 and 553221016.

It is not an unprimeable number, because it can be changed into a prime (553221091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 253385 + ... + 255558.

It is an arithmetic number, because the mean of its divisors is an integer number (138432768).

Almost surely, 2553221041 is an apocalyptic number.

It is an amenable number.

553221041 is a deficient number, since it is larger than the sum of its proper divisors (510031).

553221041 is a wasteful number, since it uses less digits than its factorization.

553221041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510030.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 553221041 is about 23520.6513727830. The cubic root of 553221041 is about 820.9175931803.

Adding to 553221041 its reverse (140122355), we get a palindrome (693343396).

The spelling of 553221041 in words is "five hundred fifty-three million, two hundred twenty-one thousand, forty-one".

Divisors: 1 1087 508943 553221041