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55150817297 is a prime number
BaseRepresentation
bin110011010111001111…
…101011000000010001
312021100112222210121212
4303113033223000101
51400422102123142
641200321225505
73661455132542
oct632717530021
9167315883555
1055150817297
1121431220354
12a831a92295
13527bc25504
1429528504c9
15167bb8cd82
hexcd73eb011

55150817297 has 2 divisors, whose sum is σ = 55150817298. Its totient is φ = 55150817296.

The previous prime is 55150817263. The next prime is 55150817311. The reversal of 55150817297 is 79271805155.

55150817297 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42267659281 + 12883158016 = 205591^2 + 113504^2 .

It is a cyclic number.

It is not a de Polignac number, because 55150817297 - 26 = 55150817233 is a prime.

It is a super-2 number, since 2×551508172972 (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (55150817797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27575408648 + 27575408649.

It is an arithmetic number, because the mean of its divisors is an integer number (27575408649).

Almost surely, 255150817297 is an apocalyptic number.

It is an amenable number.

55150817297 is a deficient number, since it is larger than the sum of its proper divisors (1).

55150817297 is an equidigital number, since it uses as much as digits as its factorization.

55150817297 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 882000, while the sum is 50.

The spelling of 55150817297 in words is "fifty-five billion, one hundred fifty million, eight hundred seventeen thousand, two hundred ninety-seven".