55385361 has 24 divisors (see below), whose sum is σ = 84789120. Its totient is φ = 34740576.

The previous prime is 55385327. The next prime is 55385387. The reversal of 55385361 is 16358355.

It is not a de Polignac number, because 55385361 - 2¹⁷ = 55254289 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55385321) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25816 + ... + 27878.

It is an arithmetic number, because the mean of its divisors is an integer number (3532880).

Almost surely, 2^55385361 is an apocalyptic number.

It is an amenable number.

55385361 is a deficient number, since it is larger than the sum of its proper divisors (29403759).

55385361 is a wasteful number, since it uses less digits than its factorization.

55385361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2245 (or 2242 counting only the distinct ones).

The product of its digits is 54000, while the sum is 36.

The square root of 55385361 is about 7442.1341697123. The cubic root of 55385361 is about 381.1813673463.

The spelling of 55385361 in words is "fifty-five million, three hundred eighty-five thousand, three hundred sixty-one".