55409327 has 16 divisors (see below), whose sum is σ = 59276448. Its totient is φ = 51717120.

The previous prime is 55409317. The next prime is 55409357. The reversal of 55409327 is 72390455.

It is a cyclic number.

It is not a de Polignac number, because 55409327 - 2⁴ = 55409311 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55409317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 93143 + ... + 93735.

It is an arithmetic number, because the mean of its divisors is an integer number (3704778).

Almost surely, 2^55409327 is an apocalyptic number.

55409327 is a deficient number, since it is larger than the sum of its proper divisors (3867121).

55409327 is a wasteful number, since it uses less digits than its factorization.

55409327 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 730.

The product of its (nonzero) digits is 37800, while the sum is 35.

The square root of 55409327 is about 7443.7441519708. The cubic root of 55409327 is about 381.2363402075.

The spelling of 55409327 in words is "fifty-five million, four hundred nine thousand, three hundred twenty-seven".