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15130005557 is a prime number
BaseRepresentation
bin11100001011101000…
…11001000000110101
31110001102202220210012
432011310121000311
5221441240134212
610541200310005
71043635632242
oct160564310065
943042686705
1015130005557
116464548127
122b23012305
131571767214
14a375c65c9
155d8444922
hex385d19035

15130005557 has 2 divisors, whose sum is σ = 15130005558. Its totient is φ = 15130005556.

The previous prime is 15130005493. The next prime is 15130005563. The reversal of 15130005557 is 75550003151.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11271856561 + 3858148996 = 106169^2 + 62114^2 .

It is a cyclic number.

It is not a de Polignac number, because 15130005557 - 26 = 15130005493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15130305557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7565002778 + 7565002779.

It is an arithmetic number, because the mean of its divisors is an integer number (7565002779).

Almost surely, 215130005557 is an apocalyptic number.

It is an amenable number.

15130005557 is a deficient number, since it is larger than the sum of its proper divisors (1).

15130005557 is an equidigital number, since it uses as much as digits as its factorization.

15130005557 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13125, while the sum is 32.

The spelling of 15130005557 in words is "fifteen billion, one hundred thirty million, five thousand, five hundred fifty-seven".