55503003 has 8 divisors (see below), whose sum is σ = 74086416. Its totient is φ = 36960800.

The previous prime is 55502987. The next prime is 55503037. The reversal of 55503003 is 30030555.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55503003 - 2⁴ = 55502987 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55503083) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7008 + ... + 12653.

It is an arithmetic number, because the mean of its divisors is an integer number (9260802).

Almost surely, 2^55503003 is an apocalyptic number.

55503003 is a deficient number, since it is larger than the sum of its proper divisors (18583413).

55503003 is a wasteful number, since it uses less digits than its factorization.

55503003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20605.

The product of its (nonzero) digits is 1125, while the sum is 21.

The square root of 55503003 is about 7450.0337583128. The cubic root of 55503003 is about 381.4510609096.

Adding to 55503003 its reverse (30030555), we get a palindrome (85533558).

The spelling of 55503003 in words is "fifty-five million, five hundred three thousand, three".