55744887 has 16 divisors (see below), whose sum is σ = 85853952. Its totient is φ = 31797120.

The previous prime is 55744877. The next prime is 55744901. The reversal of 55744887 is 78844755.

It is not a de Polignac number, because 55744887 - 2¹⁴ = 55728503 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55744807) 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, 49123 + ... + 50244.

It is an arithmetic number, because the mean of its divisors is an integer number (5365872).

Almost surely, 2^55744887 is an apocalyptic number.

55744887 is a deficient number, since it is larger than the sum of its proper divisors (30109065).

55744887 is a wasteful number, since it uses less digits than its factorization.

55744887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99398.

The product of its digits is 1254400, while the sum is 48.

The square root of 55744887 is about 7466.2498618785. The cubic root of 55744887 is about 382.0043835101.

The spelling of 55744887 in words is "fifty-five million, seven hundred forty-four thousand, eight hundred eighty-seven".