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55213524559 is a prime number
BaseRepresentation
bin110011011010111110…
…111000011001001111
312021111220222122211001
4303122332320121033
51401034130241214
641210441241131
73663146133544
oct633276703117
9167456878731
1055213524559
1121463660236
12a84aa931a7
13528bc0c7bb
14295acd4bcb
151682427c74
hexcdafb864f

55213524559 has 2 divisors, whose sum is σ = 55213524560. Its totient is φ = 55213524558.

The previous prime is 55213524497. The next prime is 55213524593. The reversal of 55213524559 is 95542531255.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55213524559 - 225 = 55179970127 is a prime.

It is a super-2 number, since 2×552135245592 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55213554559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27606762279 + 27606762280.

It is an arithmetic number, because the mean of its divisors is an integer number (27606762280).

Almost surely, 255213524559 is an apocalyptic number.

55213524559 is a deficient number, since it is larger than the sum of its proper divisors (1).

55213524559 is an equidigital number, since it uses as much as digits as its factorization.

55213524559 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1350000, while the sum is 46.

The spelling of 55213524559 in words is "fifty-five billion, two hundred thirteen million, five hundred twenty-four thousand, five hundred fifty-nine".