55250517 has 16 divisors (see below), whose sum is σ = 84395520. Its totient is φ = 31495152.

The previous prime is 55250513. The next prime is 55250519. The reversal of 55250517 is 71505255.

55250517 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 55250517 - 2² = 55250513 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55250513) 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 in 15 ways as a sum of consecutive naturals, for example, 6334 + ... + 12272.

It is an arithmetic number, because the mean of its divisors is an integer number (5274720).

Almost surely, 2^55250517 is an apocalyptic number.

It is an amenable number.

55250517 is a deficient number, since it is larger than the sum of its proper divisors (29145003).

55250517 is a wasteful number, since it uses less digits than its factorization.

55250517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6392.

The product of its (nonzero) digits is 8750, while the sum is 30.

The square root of 55250517 is about 7433.0691507613. The cubic root of 55250517 is about 380.8717681455.

The spelling of 55250517 in words is "fifty-five million, two hundred fifty thousand, five hundred seventeen".