55947888 has 40 divisors (see below), whose sum is σ = 160592400. Its totient is φ = 18649152.

The previous prime is 55947887. The next prime is 55947889. The reversal of 55947888 is 88874955.

55947888 is a `hidden beast` number, since 559 + 4 + 7 + 8 + 88 = 666.

55947888 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (55947887) and next prime (55947889).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55947887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64323 + ... + 65186.

It is an arithmetic number, because the mean of its divisors is an integer number (4014810).

Almost surely, 2^55947888 is an apocalyptic number.

It is an amenable number.

55947888 is an abundant number, since it is smaller than the sum of its proper divisors (104644512).

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

55947888 is a wasteful number, since it uses less digits than its factorization.

55947888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129526 (or 129514 counting only the distinct ones).

The product of its digits is 3225600, while the sum is 54.

The square root of 55947888 is about 7479.8320836767. The cubic root of 55947888 is about 382.4675251168.

The spelling of 55947888 in words is "fifty-five million, nine hundred forty-seven thousand, eight hundred eighty-eight".