55189547 has 8 divisors (see below), whose sum is σ = 66393600. Its totient is φ = 44815464.

The previous prime is 55189543. The next prime is 55189549. The reversal of 55189547 is 74598155.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55189547 - 2² = 55189543 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55189498 and 55189507.

It is not an unprimeable number, because it can be changed into a prime (55189543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 207347 + ... + 207612.

It is an arithmetic number, because the mean of its divisors is an integer number (8299200).

Almost surely, 2^55189547 is an apocalyptic number.

55189547 is a deficient number, since it is larger than the sum of its proper divisors (11204053).

55189547 is a wasteful number, since it uses less digits than its factorization.

55189547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 414985.

The product of its digits is 252000, while the sum is 44.

The square root of 55189547 is about 7428.9667518438. The cubic root of 55189547 is about 380.7316168245.

The spelling of 55189547 in words is "fifty-five million, one hundred eighty-nine thousand, five hundred forty-seven".