55115888 has 10 divisors (see below), whose sum is σ = 106787064. Its totient is φ = 27557936.

The previous prime is 55115881. The next prime is 55115891. The reversal of 55115888 is 88851155.

It is a super-3 number, since 3×55115888³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55115881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1722356 + ... + 1722387.

Almost surely, 2^55115888 is an apocalyptic number.

It is an amenable number.

55115888 is a deficient number, since it is larger than the sum of its proper divisors (51671176).

55115888 is a wasteful number, since it uses less digits than its factorization.

55115888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3444751 (or 3444745 counting only the distinct ones).

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

The square root of 55115888 is about 7424.0075430996. The cubic root of 55115888 is about 380.5621596390.

The spelling of 55115888 in words is "fifty-five million, one hundred fifteen thousand, eight hundred eighty-eight".