55385535 has 16 divisors (see below), whose sum is σ = 89215200. Its totient is φ = 29339520.

The previous prime is 55385531. The next prime is 55385537. The reversal of 55385535 is 53558355.

It is not a de Polignac number, because 55385535 - 2² = 55385531 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55385493 and 55385502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55385531) 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, 10156 + ... + 14625.

It is an arithmetic number, because the mean of its divisors is an integer number (5575950).

Almost surely, 2^55385535 is an apocalyptic number.

55385535 is a deficient number, since it is larger than the sum of its proper divisors (33829665).

55385535 is a wasteful number, since it uses less digits than its factorization.

55385535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24938.

The product of its digits is 225000, while the sum is 39.

The square root of 55385535 is about 7442.1458598982. The cubic root of 55385535 is about 381.1817665221.

The spelling of 55385535 in words is "fifty-five million, three hundred eighty-five thousand, five hundred thirty-five".