55150717 has 2 divisors, whose sum is σ = 55150718. Its totient is φ = 55150716.

The previous prime is 55150679. The next prime is 55150727. The reversal of 55150717 is 71705155.

55150717 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., 33304441 + 21846276 = 5771^2 + 4674^2 .

It is a cyclic number.

It is not a de Polignac number, because 55150717 - 2¹⁵ = 55117949 is a prime.

It is a super-2 number, since 2×55150717² = 6083203171228178, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55150727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27575358 + 27575359.

It is an arithmetic number, because the mean of its divisors is an integer number (27575359).

Almost surely, 2^55150717 is an apocalyptic number.

It is an amenable number.

55150717 is a deficient number, since it is larger than the sum of its proper divisors (1).

55150717 is an equidigital number, since it uses as much as digits as its factorization.

55150717 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6125, while the sum is 31.

The square root of 55150717 is about 7426.3528733827. The cubic root of 55150717 is about 380.6423047596.

The spelling of 55150717 in words is "fifty-five million, one hundred fifty thousand, seven hundred seventeen".