55876287 has 4 divisors (see below), whose sum is σ = 74501720. Its totient is φ = 37250856.

The previous prime is 55876273. The next prime is 55876319. The reversal of 55876287 is 78267855.

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

It is not a de Polignac number, because 55876287 - 2⁷ = 55876159 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55876087) 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, 9312712 + ... + 9312717.

It is an arithmetic number, because the mean of its divisors is an integer number (18625430).

Almost surely, 2^55876287 is an apocalyptic number.

55876287 is a deficient number, since it is larger than the sum of its proper divisors (18625433).

55876287 is a wasteful number, since it uses less digits than its factorization.

55876287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18625432.

The product of its digits is 940800, while the sum is 48.

The square root of 55876287 is about 7475.0442808053. The cubic root of 55876287 is about 382.3042973416.

The spelling of 55876287 in words is "fifty-five million, eight hundred seventy-six thousand, two hundred eighty-seven".