55193472 has 48 divisors (see below), whose sum is σ = 158828280. Its totient is φ = 18397440.

The previous prime is 55193449. The next prime is 55193513. The reversal of 55193472 is 27439155.

55193472 is a `hidden beast` number, since 551 + 9 + 34 + 72 = 666.

It is a tau number, because it is divible by the number of its divisors (48).

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 22804 + ... + 25107.

Almost surely, 2^55193472 is an apocalyptic number.

It is an amenable number.

55193472 is an abundant number, since it is smaller than the sum of its proper divisors (103634808).

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

55193472 is a wasteful number, since it uses less digits than its factorization.

55193472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47931 (or 47916 counting only the distinct ones).

The product of its digits is 37800, while the sum is 36.

The square root of 55193472 is about 7429.2309157813. The cubic root of 55193472 is about 380.7406423028.

The spelling of 55193472 in words is "fifty-five million, one hundred ninety-three thousand, four hundred seventy-two".