53555138 has 48 divisors (see below), whose sum is σ = 101735424. Its totient is φ = 20956320.

The previous prime is 53555123. The next prime is 53555233. The reversal of 53555138 is 83155535.

53555138 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 53555098 and 53555107.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 161633 + ... + 161963.

It is an arithmetic number, because the mean of its divisors is an integer number (2119488).

Almost surely, 2^53555138 is an apocalyptic number.

53555138 is a deficient number, since it is larger than the sum of its proper divisors (48180286).

53555138 is a wasteful number, since it uses less digits than its factorization.

53555138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487 (or 480 counting only the distinct ones).

The product of its digits is 45000, while the sum is 35.

The square root of 53555138 is about 7318.1376046095. The cubic root of 53555138 is about 376.9355052940.

The spelling of 53555138 in words is "fifty-three million, five hundred fifty-five thousand, one hundred thirty-eight".