Search a number
-
+
10557655613 is a prime number
BaseRepresentation
bin10011101010100100…
…10000101000111101
31000020210002110210222
421311102100220331
5133110224434423
64503343111125
7522425410031
oct116522205075
930223073728
1010557655613
114528580a1a
1220678a24a5
13cc33ab3cb
147222461c1
1541bd143c8
hex275490a3d

10557655613 has 2 divisors, whose sum is σ = 10557655614. Its totient is φ = 10557655612.

The previous prime is 10557655561. The next prime is 10557655631. The reversal of 10557655613 is 31655675501.

Together with next prime (10557655631) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6291345124 + 4266310489 = 79318^2 + 65317^2 .

It is an emirp because it is prime and its reverse (31655675501) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10557655613 - 28 = 10557655357 is a prime.

It is a super-2 number, since 2×105576556132 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10557655643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5278827806 + 5278827807.

It is an arithmetic number, because the mean of its divisors is an integer number (5278827807).

Almost surely, 210557655613 is an apocalyptic number.

It is an amenable number.

10557655613 is a deficient number, since it is larger than the sum of its proper divisors (1).

10557655613 is an equidigital number, since it uses as much as digits as its factorization.

10557655613 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 472500, while the sum is 44.

The spelling of 10557655613 in words is "ten billion, five hundred fifty-seven million, six hundred fifty-five thousand, six hundred thirteen".