54551599 has 4 divisors (see below), whose sum is σ = 56311360. Its totient is φ = 52791840.

The previous prime is 54551597. The next prime is 54551611. The reversal of 54551599 is 99515545.

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 54551599 - 2¹ = 54551597 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 (54551593) 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, 879834 + ... + 879895.

It is an arithmetic number, because the mean of its divisors is an integer number (14077840).

Almost surely, 2^54551599 is an apocalyptic number.

54551599 is a deficient number, since it is larger than the sum of its proper divisors (1759761).

54551599 is a wasteful number, since it uses less digits than its factorization.

54551599 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1759760.

The product of its digits is 202500, while the sum is 43.

The square root of 54551599 is about 7385.9054285849. The cubic root of 54551599 is about 379.2589412636.

The spelling of 54551599 in words is "fifty-four million, five hundred fifty-one thousand, five hundred ninety-nine".