55340303 has 2 divisors, whose sum is σ = 55340304. Its totient is φ = 55340302.

The previous prime is 55340279. The next prime is 55340309. The reversal of 55340303 is 30304355.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55340303 - 2¹⁸ = 55078159 is a prime.

It is a super-2 number, since 2×55340303² = 6125098272263618, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55340309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27670151 + 27670152.

It is an arithmetic number, because the mean of its divisors is an integer number (27670152).

Almost surely, 2^55340303 is an apocalyptic number.

55340303 is a deficient number, since it is larger than the sum of its proper divisors (1).

55340303 is an equidigital number, since it uses as much as digits as its factorization.

55340303 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2700, while the sum is 23.

The square root of 55340303 is about 7439.1063307362. The cubic root of 55340303 is about 381.0779710131.

Adding to 55340303 its reverse (30304355), we get a palindrome (85644658).

The spelling of 55340303 in words is "fifty-five million, three hundred forty thousand, three hundred three".