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552124421 = 678240663
BaseRepresentation
bin100000111010001…
…100000000000101
31102110220211022122
4200322030000011
52112320440141
6130441535325
716452660122
oct4072140005
91373824278
10552124421
11263729282
12134aa4545
138a505454
1453483749
153371264b
hex20e8c005

552124421 has 4 divisors (see below), whose sum is σ = 560365152. Its totient is φ = 543883692.

The previous prime is 552124411. The next prime is 552124451. The reversal of 552124421 is 124421255.

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 552124421 - 26 = 552124357 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 (552124411) 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, 4120265 + ... + 4120398.

It is an arithmetic number, because the mean of its divisors is an integer number (140091288).

Almost surely, 2552124421 is an apocalyptic number.

It is an amenable number.

552124421 is a deficient number, since it is larger than the sum of its proper divisors (8240731).

552124421 is an equidigital number, since it uses as much as digits as its factorization.

552124421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8240730.

The product of its digits is 3200, while the sum is 26.

The square root of 552124421 is about 23497.3279544718. The cubic root of 552124421 is about 820.3748142735.

Adding to 552124421 its reverse (124421255), we get a palindrome (676545676).

The spelling of 552124421 in words is "five hundred fifty-two million, one hundred twenty-four thousand, four hundred twenty-one".

Divisors: 1 67 8240663 552124421