55150829121287 has 2 divisors, whose sum is σ = 55150829121288. Its totient is φ = 55150829121286.

The previous prime is 55150829121187. The next prime is 55150829121329. The reversal of 55150829121287 is 78212192805155.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55150829121287 is a prime.

It is a super-2 number, since 2×55150829121287² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55150829121187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27575414560643 + 27575414560644.

It is an arithmetic number, because the mean of its divisors is an integer number (27575414560644).

Almost surely, 2^{55150829121287} is an apocalyptic number.

55150829121287 is a deficient number, since it is larger than the sum of its proper divisors (1).

55150829121287 is an equidigital number, since it uses as much as digits as its factorization.

55150829121287 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032000, while the sum is 56.

The spelling of 55150829121287 in words is "fifty-five trillion, one hundred fifty billion, eight hundred twenty-nine million, one hundred twenty-one thousand, two hundred eighty-seven".