55644552 has 48 divisors (see below), whose sum is σ = 153270000. Its totient is φ = 18232416.

The previous prime is 55644551. The next prime is 55644583. The reversal of 55644552 is 25544655.

55644552 is a `hidden beast` number, since 5 + 5 + 644 + 5 + 5 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (55644551) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2302 + ... + 10797.

It is an arithmetic number, because the mean of its divisors is an integer number (3193125).

Almost surely, 2^55644552 is an apocalyptic number.

It is an amenable number.

55644552 is an abundant number, since it is smaller than the sum of its proper divisors (97625448).

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

55644552 is a wasteful number, since it uses less digits than its factorization.

55644552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13170 (or 13163 counting only the distinct ones).

The product of its digits is 120000, while the sum is 36.

The square root of 55644552 is about 7459.5275989837. The cubic root of 55644552 is about 381.7750564775.

The spelling of 55644552 in words is "fifty-five million, six hundred forty-four thousand, five hundred fifty-two".