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51102250369 is a prime number
BaseRepresentation
bin101111100101111011…
…100111010110000001
311212220101220021212121
4233211323213112001
51314124134002434
635250454324241
73456234650452
oct574573472601
9155811807777
1051102250369
111a743985075
129aa2059681
134a8522aa91
14268ac97129
1514e15227b4
hexbe5ee7581

51102250369 has 2 divisors, whose sum is σ = 51102250370. Its totient is φ = 51102250368.

The previous prime is 51102250301. The next prime is 51102250403. The reversal of 51102250369 is 96305220115.

It is an a-pointer prime, because the next prime (51102250403) can be obtained adding 51102250369 to its sum of digits (34).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47321476225 + 3780774144 = 217535^2 + 61488^2 .

It is a cyclic number.

It is not a de Polignac number, because 51102250369 - 29 = 51102249857 is a prime.

It is a super-2 number, since 2×511022503692 (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (51102256369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25551125184 + 25551125185.

It is an arithmetic number, because the mean of its divisors is an integer number (25551125185).

Almost surely, 251102250369 is an apocalyptic number.

It is an amenable number.

51102250369 is a deficient number, since it is larger than the sum of its proper divisors (1).

51102250369 is an equidigital number, since it uses as much as digits as its factorization.

51102250369 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16200, while the sum is 34.

The spelling of 51102250369 in words is "fifty-one billion, one hundred two million, two hundred fifty thousand, three hundred sixty-nine".