55147104 has 72 divisors (see below), whose sum is σ = 157542840. Its totient is φ = 18298368.

The previous prime is 55147087. The next prime is 55147117. The reversal of 55147104 is 40174155.

It is a happy number.

55147104 is a `hidden beast` number, since 551 + 4 + 7 + 104 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 120444 + ... + 120900.

It is an arithmetic number, because the mean of its divisors is an integer number (2188095).

Almost surely, 2^55147104 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 55147104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78771420).

55147104 is an abundant number, since it is smaller than the sum of its proper divisors (102395736).

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

55147104 is a wasteful number, since it uses less digits than its factorization.

55147104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 892 (or 881 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 27.

The square root of 55147104 is about 7426.1096140577. The cubic root of 55147104 is about 380.6339924429.

The spelling of 55147104 in words is "fifty-five million, one hundred forty-seven thousand, one hundred four".