55005302503 has 2 divisors, whose sum is σ = 55005302504. Its totient is φ = 55005302502.

The previous prime is 55005302479. The next prime is 55005302509. The reversal of 55005302503 is 30520350055.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55005302503 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55005302509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27502651251 + 27502651252.

It is an arithmetic number, because the mean of its divisors is an integer number (27502651252).

Almost surely, 2^55005302503 is an apocalyptic number.

55005302503 is a deficient number, since it is larger than the sum of its proper divisors (1).

55005302503 is an equidigital number, since it uses as much as digits as its factorization.

55005302503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11250, while the sum is 28.

Adding to 55005302503 its reverse (30520350055), we get a palindrome (85525652558).

The spelling of 55005302503 in words is "fifty-five billion, five million, three hundred two thousand, five hundred three".