55198603 has 2 divisors, whose sum is σ = 55198604. Its totient is φ = 55198602.

The previous prime is 55198589. The next prime is 55198607. The reversal of 55198603 is 30689155.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55198603 - 2¹³ = 55190411 is a prime.

It is not a weakly prime, because it can be changed into another prime (55198607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27599301 + 27599302.

It is an arithmetic number, because the mean of its divisors is an integer number (27599302).

Almost surely, 2^55198603 is an apocalyptic number.

55198603 is a deficient number, since it is larger than the sum of its proper divisors (1).

55198603 is an equidigital number, since it uses as much as digits as its factorization.

55198603 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32400, while the sum is 37.

The square root of 55198603 is about 7429.5762328682. The cubic root of 55198603 is about 380.7524403146.

The spelling of 55198603 in words is "fifty-five million, one hundred ninety-eight thousand, six hundred three".