55511888 has 20 divisors (see below), whose sum is σ = 109844160. Its totient is φ = 27165024.

The previous prime is 55511879. The next prime is 55511893. The reversal of 55511888 is 88811555.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a zygodrome in base 10.

It is a congruent number.

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, 36158 + ... + 37661.

It is an arithmetic number, because the mean of its divisors is an integer number (5492208).

Almost surely, 2^55511888 is an apocalyptic number.

It is an amenable number.

55511888 is a deficient number, since it is larger than the sum of its proper divisors (54332272).

55511888 is a wasteful number, since it uses less digits than its factorization.

55511888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73874 (or 73868 counting only the distinct ones).

The product of its digits is 64000, while the sum is 41.

The square root of 55511888 is about 7450.6300404731. The cubic root of 55511888 is about 381.4714142338.

The spelling of 55511888 in words is "fifty-five million, five hundred eleven thousand, eight hundred eighty-eight".