55534187 has 4 divisors (see below), whose sum is σ = 55702296. Its totient is φ = 55366080.

The previous prime is 55534181. The next prime is 55534229. The reversal of 55534187 is 78143555.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 55534187 - 2¹² = 55530091 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55534187.

It is not an unprimeable number, because it can be changed into a prime (55534181) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83558 + ... + 84219.

It is an arithmetic number, because the mean of its divisors is an integer number (13925574).

Almost surely, 2^55534187 is an apocalyptic number.

55534187 is a deficient number, since it is larger than the sum of its proper divisors (168109).

55534187 is a wasteful number, since it uses less digits than its factorization.

55534187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168108.

The product of its digits is 84000, while the sum is 38.

The square root of 55534187 is about 7452.1263408506. The cubic root of 55534187 is about 381.5224861310.

The spelling of 55534187 in words is "fifty-five million, five hundred thirty-four thousand, one hundred eighty-seven".