55627240 has 16 divisors (see below), whose sum is σ = 125161380. Its totient is φ = 22250880.

The previous prime is 55627207. The next prime is 55627259. The reversal of 55627240 is 4272655.

55627240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 55621764 + 5476 = 7458^2 + 74^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 695301 + ... + 695380.

Almost surely, 2^55627240 is an apocalyptic number.

It is an amenable number.

55627240 is an abundant number, since it is smaller than the sum of its proper divisors (69534140).

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

55627240 is a wasteful number, since it uses less digits than its factorization.

55627240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1390692 (or 1390688 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 31.

The square root of 55627240 is about 7458.3671135175. The cubic root of 55627240 is about 381.7354600565.

Adding to 55627240 its reverse (4272655), we get a palindrome (59899895).

The spelling of 55627240 in words is "fifty-five million, six hundred twenty-seven thousand, two hundred forty".