55365503 has 2 divisors, whose sum is σ = 55365504. Its totient is φ = 55365502.

The previous prime is 55365469. The next prime is 55365521. The reversal of 55365503 is 30556355.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55365503 - 2¹² = 55361407 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55365503.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55335503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27682751 + 27682752.

It is an arithmetic number, because the mean of its divisors is an integer number (27682752).

Almost surely, 2^55365503 is an apocalyptic number.

55365503 is a deficient number, since it is larger than the sum of its proper divisors (1).

55365503 is an equidigital number, since it uses as much as digits as its factorization.

55365503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 33750, while the sum is 32.

The square root of 55365503 is about 7440.7998897968. The cubic root of 55365503 is about 381.1358053404.

The spelling of 55365503 in words is "fifty-five million, three hundred sixty-five thousand, five hundred three".