55553003 has 4 divisors (see below), whose sum is σ = 60603288. Its totient is φ = 50502720.

The previous prime is 55552993. The next prime is 55553053. The reversal of 55553003 is 30035555.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55553003 is a prime.

It is a super-2 number, since 2×55553003² = 6172272284636018, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55553053) 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, 2525126 + ... + 2525147.

It is an arithmetic number, because the mean of its divisors is an integer number (15150822).

Almost surely, 2^55553003 is an apocalyptic number.

55553003 is a deficient number, since it is larger than the sum of its proper divisors (5050285).

55553003 is a wasteful number, since it uses less digits than its factorization.

55553003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5050284.

The product of its (nonzero) digits is 5625, while the sum is 26.

The square root of 55553003 is about 7453.3886924003. The cubic root of 55553003 is about 381.5655702015.

Adding to 55553003 its reverse (30035555), we get a palindrome (85588558).

It can be divided in two parts, 5555 and 3003, that added together give a palindrome (8558).

The spelling of 55553003 in words is "fifty-five million, five hundred fifty-three thousand, three".