55087886 has 8 divisors (see below), whose sum is σ = 94436400. Its totient is φ = 23609088.

The previous prime is 55087883. The next prime is 55087889. The reversal of 55087886 is 68878055.

It is an interprime number because it is at equal distance from previous prime (55087883) and next prime (55087889).

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

It is a self number, because there is not a number n which added to its sum of digits gives 55087886.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55087883) 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 3 ways as a sum of consecutive naturals, for example, 1967411 + ... + 1967438.

It is an arithmetic number, because the mean of its divisors is an integer number (11804550).

Almost surely, 2^55087886 is an apocalyptic number.

55087886 is a deficient number, since it is larger than the sum of its proper divisors (39348514).

55087886 is a wasteful number, since it uses less digits than its factorization.

55087886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3934858.

The product of its (nonzero) digits is 537600, while the sum is 47.

The square root of 55087886 is about 7422.1213948574. The cubic root of 55087886 is about 380.4976996608.

The spelling of 55087886 in words is "fifty-five million, eighty-seven thousand, eight hundred eighty-six".