55287488 has 14 divisors (see below), whose sum is σ = 109711236. Its totient is φ = 27643712.

The previous prime is 55287467. The next prime is 55287497. The reversal of 55287488 is 88478255.

55287488 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 as a sum of consecutive naturals, namely, 431870 + ... + 431997.

Almost surely, 2^55287488 is an apocalyptic number.

It is an amenable number.

55287488 is a deficient number, since it is larger than the sum of its proper divisors (54423748).

55287488 is an equidigital number, since it uses as much as digits as its factorization.

55287488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 863879 (or 863869 counting only the distinct ones).

The product of its digits is 716800, while the sum is 47.

The square root of 55287488 is about 7435.5556618184. Note that the first 3 decimals coincide. The cubic root of 55287488 is about 380.9567029192.

The spelling of 55287488 in words is "fifty-five million, two hundred eighty-seven thousand, four hundred eighty-eight".