240055 has 8 divisors (see below), whose sum is σ = 295344. Its totient is φ = 187200.

The previous prime is 240049. The next prime is 240059. The reversal of 240055 is 550042.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 240055 - 2³ = 240047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240059) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 381 + ... + 790.

It is an arithmetic number, because the mean of its divisors is an integer number (36918).

2²⁴⁰⁰⁵⁵ is an apocalyptic number.

240055 is a deficient number, since it is larger than the sum of its proper divisors (55289).

240055 is a wasteful number, since it uses less digits than its factorization.

240055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1217.

The product of its (nonzero) digits is 200, while the sum is 16.

The square root of 240055 is about 489.9540794809. The cubic root of 240055 is about 62.1493969173.

Adding to 240055 its reverse (550042), we get a palindrome (790097).

The spelling of 240055 in words is "two hundred forty thousand, fifty-five".