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55131451259 is a prime number
BaseRepresentation
bin110011010110000101…
…110010111101111011
312021022012112220102012
4303112011302331323
51400402122420014
641154350200135
73661131414023
oct632605627573
9167265486365
1055131451259
11214212a3365
12a8274b304b
135277c04811
14295004ca83
15167a114c3e
hexcd6172f7b

55131451259 has 2 divisors, whose sum is σ = 55131451260. Its totient is φ = 55131451258.

The previous prime is 55131451217. The next prime is 55131451321. The reversal of 55131451259 is 95215413155.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55131451259 - 216 = 55131385723 is a prime.

It is not a weakly prime, because it can be changed into another prime (55131450259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27565725629 + 27565725630.

It is an arithmetic number, because the mean of its divisors is an integer number (27565725630).

Almost surely, 255131451259 is an apocalyptic number.

55131451259 is a deficient number, since it is larger than the sum of its proper divisors (1).

55131451259 is an equidigital number, since it uses as much as digits as its factorization.

55131451259 is an evil number, because the sum of its binary digits is even.

The product of its digits is 135000, while the sum is 41.

The spelling of 55131451259 in words is "fifty-five billion, one hundred thirty-one million, four hundred fifty-one thousand, two hundred fifty-nine".