55287748 has 12 divisors (see below), whose sum is σ = 96949440. Its totient is φ = 27587912.

The previous prime is 55287737. The next prime is 55287761. The reversal of 55287748 is 84778255.

It is a junction number, because it is equal to n+sod(n) for n = 55287698 and 55287707.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11728 + ... + 15751.

It is an arithmetic number, because the mean of its divisors is an integer number (8079120).

Almost surely, 2^55287748 is an apocalyptic number.

It is an amenable number.

55287748 is a deficient number, since it is larger than the sum of its proper divisors (41661692).

55287748 is a wasteful number, since it uses less digits than its factorization.

55287748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27986 (or 27984 counting only the distinct ones).

The product of its digits is 627200, while the sum is 46.

The square root of 55287748 is about 7435.5731453601. The cubic root of 55287748 is about 380.9573000922.

The spelling of 55287748 in words is "fifty-five million, two hundred eighty-seven thousand, seven hundred forty-eight".