55510240 has 24 divisors (see below), whose sum is σ = 131143320. Its totient is φ = 22204032.

The previous prime is 55510223. The next prime is 55510241. The reversal of 55510240 is 4201555.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55510241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 173310 + ... + 173629.

It is an arithmetic number, because the mean of its divisors is an integer number (5464305).

Almost surely, 2^55510240 is an apocalyptic number.

It is an amenable number.

55510240 is an abundant number, since it is smaller than the sum of its proper divisors (75633080).

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

55510240 is a wasteful number, since it uses less digits than its factorization.

55510240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346954 (or 346946 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 22.

The square root of 55510240 is about 7450.5194449783. The cubic root of 55510240 is about 381.4676392399.

Adding to 55510240 its reverse (4201555), we get a palindrome (59711795).

The spelling of 55510240 in words is "fifty-five million, five hundred ten thousand, two hundred forty".