55067287 has 8 divisors (see below), whose sum is σ = 60513552. Its totient is φ = 49694400.

The previous prime is 55067269. The next prime is 55067297. The reversal of 55067287 is 78276055.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55067287 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55067227) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 16764 + ... + 19777.

It is an arithmetic number, because the mean of its divisors is an integer number (7564194).

Almost surely, 2^55067287 is an apocalyptic number.

55067287 is a deficient number, since it is larger than the sum of its proper divisors (5446265).

55067287 is a wasteful number, since it uses less digits than its factorization.

55067287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36689.

The product of its (nonzero) digits is 117600, while the sum is 40.

The square root of 55067287 is about 7420.7335890733. The cubic root of 55067287 is about 380.4502672770.

The spelling of 55067287 in words is "fifty-five million, sixty-seven thousand, two hundred eighty-seven".