55041240 has 64 divisors (see below), whose sum is σ = 174843360. Its totient is φ = 13813760.

The previous prime is 55041221. The next prime is 55041241. The reversal of 55041240 is 4214055.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55041241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11451 + ... + 15530.

Almost surely, 2^55041240 is an apocalyptic number.

It is an amenable number.

55041240 is an abundant number, since it is smaller than the sum of its proper divisors (119802120).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55041240 is a wasteful number, since it uses less digits than its factorization.

55041240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27012 (or 27008 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 55041240 is about 7418.9783663251. The cubic root of 55041240 is about 380.3902730924.

Adding to 55041240 its reverse (4214055), we get a palindrome (59255295).

The spelling of 55041240 in words is "fifty-five million, forty-one thousand, two hundred forty".