55385895 has 16 divisors (see below), whose sum is σ = 88715232. Its totient is φ = 29506560.

The previous prime is 55385887. The next prime is 55385917. The reversal of 55385895 is 59858355.

It is not a de Polignac number, because 55385895 - 2³ = 55385887 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19059 + ... + 21771.

It is an arithmetic number, because the mean of its divisors is an integer number (5544702).

Almost surely, 2^55385895 is an apocalyptic number.

55385895 is a deficient number, since it is larger than the sum of its proper divisors (33329337).

55385895 is a wasteful number, since it uses less digits than its factorization.

55385895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4082.

The product of its digits is 1080000, while the sum is 48.

The square root of 55385895 is about 7442.1700464313. The cubic root of 55385895 is about 381.1825924004.

It can be divided in two parts, 55385 and 895, that added together give a triangular number (56280 = T₃₃₅).

The spelling of 55385895 in words is "fifty-five million, three hundred eighty-five thousand, eight hundred ninety-five".