55989367 has 4 divisors (see below), whose sum is σ = 63987856. Its totient is φ = 47990880.

The previous prime is 55989341. The next prime is 55989377. The reversal of 55989367 is 76398955.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 76398955 = 5 ⋅15279791.

It is not a de Polignac number, because 55989367 - 2⁷ = 55989239 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 (55989377) 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, 3999234 + ... + 3999247.

It is an arithmetic number, because the mean of its divisors is an integer number (15996964).

Almost surely, 2^55989367 is an apocalyptic number.

55989367 is a deficient number, since it is larger than the sum of its proper divisors (7998489).

55989367 is an equidigital number, since it uses as much as digits as its factorization.

55989367 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7998488.

The product of its digits is 2041200, while the sum is 52.

The square root of 55989367 is about 7482.6042926243. The cubic root of 55989367 is about 382.5620205012.

The spelling of 55989367 in words is "fifty-five million, nine hundred eighty-nine thousand, three hundred sixty-seven".