55004593 has 4 divisors (see below), whose sum is σ = 62862400. Its totient is φ = 47146788.

The previous prime is 55004591. The next prime is 55004603. The reversal of 55004593 is 39540055.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 39540055 = 5 ⋅7908011.

It is a cyclic number.

It is not a de Polignac number, because 55004593 - 2¹ = 55004591 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55004591) 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, 3928893 + ... + 3928906.

It is an arithmetic number, because the mean of its divisors is an integer number (15715600).

Almost surely, 2^55004593 is an apocalyptic number.

It is an amenable number.

55004593 is a deficient number, since it is larger than the sum of its proper divisors (7857807).

55004593 is an equidigital number, since it uses as much as digits as its factorization.

55004593 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7857806.

The product of its (nonzero) digits is 13500, while the sum is 31.

The square root of 55004593 is about 7416.5081406279. The cubic root of 55004593 is about 380.3058318182.

The spelling of 55004593 in words is "fifty-five million, four thousand, five hundred ninety-three".