55135488 has 144 divisors (see below), whose sum is σ = 160707456. Its totient is φ = 16711680.

The previous prime is 55135469. The next prime is 55135499. The reversal of 55135488 is 88453155.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 535245 + ... + 535347.

It is an arithmetic number, because the mean of its divisors is an integer number (1116024).

Almost surely, 2^55135488 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55135488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80353728).

55135488 is an abundant number, since it is smaller than the sum of its proper divisors (105571968).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55135488 is a wasteful number, since it uses less digits than its factorization.

55135488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180 (or 166 counting only the distinct ones).

The product of its digits is 96000, while the sum is 39.

The square root of 55135488 is about 7425.3274675263. The cubic root of 55135488 is about 380.6072654127.

The spelling of 55135488 in words is "fifty-five million, one hundred thirty-five thousand, four hundred eighty-eight".