55340505 has 24 divisors (see below), whose sum is σ = 104644800. Its totient is φ = 26831520.

The previous prime is 55340503. The next prime is 55340543. The reversal of 55340505 is 50504355.

It is not a de Polignac number, because 55340505 - 2¹ = 55340503 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55340501) 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, 55405 + ... + 56394.

It is an arithmetic number, because the mean of its divisors is an integer number (4360200).

Almost surely, 2^55340505 is an apocalyptic number.

55340505 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

55340505 is a deficient number, since it is larger than the sum of its proper divisors (49304295).

55340505 is a wasteful number, since it uses less digits than its factorization.

55340505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111821 (or 111818 counting only the distinct ones).

The product of its (nonzero) digits is 7500, while the sum is 27.

The square root of 55340505 is about 7439.1199076235. The cubic root of 55340505 is about 381.0784346755.

The spelling of 55340505 in words is "fifty-five million, three hundred forty thousand, five hundred five".