55616003 has 2 divisors, whose sum is σ = 55616004. Its totient is φ = 55616002.

The previous prime is 55615991. The next prime is 55616039. The reversal of 55616003 is 30061655.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55616003 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (55616083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27808001 + 27808002.

It is an arithmetic number, because the mean of its divisors is an integer number (27808002).

Almost surely, 2^55616003 is an apocalyptic number.

55616003 is a deficient number, since it is larger than the sum of its proper divisors (1).

55616003 is an equidigital number, since it uses as much as digits as its factorization.

55616003 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2700, while the sum is 26.

The square root of 55616003 is about 7457.6137604464. The cubic root of 55616003 is about 381.7097541240.

Adding to 55616003 its reverse (30061655), we get a palindrome (85677658).

The spelling of 55616003 in words is "fifty-five million, six hundred sixteen thousand, three".