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552216425 = 521932593
BaseRepresentation
bin100000111010100…
…010011101101001
31102111002111112012
4200322202131221
52112331411200
6130443525305
716453522265
oct4072423551
91374074465
10552216425
11263791412
12134b29835
138a5382a7
14534a90a5
153372ea35
hex20ea2769

552216425 has 18 divisors (see below), whose sum is σ = 689475402. Its totient is φ = 438743040.

The previous prime is 552216419. The next prime is 552216433. The reversal of 552216425 is 524612255.

It can be written as a sum of positive squares in 9 ways, for example, as 255136729 + 297079696 = 15973^2 + 17236^2 .

It is not a de Polignac number, because 552216425 - 24 = 552216409 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 552216391 and 552216400.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 930929 + ... + 931521.

It is an arithmetic number, because the mean of its divisors is an integer number (38304189).

Almost surely, 2552216425 is an apocalyptic number.

It is an amenable number.

552216425 is a deficient number, since it is larger than the sum of its proper divisors (137258977).

552216425 is an equidigital number, since it uses as much as digits as its factorization.

552216425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 989 (or 791 counting only the distinct ones).

The product of its digits is 24000, while the sum is 32.

The square root of 552216425 is about 23499.2856274398. The cubic root of 552216425 is about 820.4203798317.

The spelling of 552216425 in words is "five hundred fifty-two million, two hundred sixteen thousand, four hundred twenty-five".

Divisors: 1 5 25 193 593 965 2965 4825 14825 37249 114449 186245 572245 931225 2861225 22088657 110443285 552216425