55555003 has 4 divisors (see below), whose sum is σ = 63491440. Its totient is φ = 47618568.

The previous prime is 55555001. The next prime is 55555009. The reversal of 55555003 is 30055555.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30055555 = 5 ⋅6011111.

It is a cyclic number.

It is not a de Polignac number, because 55555003 - 2¹ = 55555001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55555001) 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, 3968208 + ... + 3968221.

It is an arithmetic number, because the mean of its divisors is an integer number (15872860).

Almost surely, 2^55555003 is an apocalyptic number.

55555003 is a deficient number, since it is larger than the sum of its proper divisors (7936437).

55555003 is an equidigital number, since it uses as much as digits as its factorization.

55555003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7936436.

The product of its (nonzero) digits is 9375, while the sum is 28.

The square root of 55555003 is about 7453.5228583536. The cubic root of 55555003 is about 381.5701491438.

The spelling of 55555003 in words is "fifty-five million, five hundred fifty-five thousand, three".