55427303 has 2 divisors, whose sum is σ = 55427304. Its totient is φ = 55427302.

The previous prime is 55427257. The next prime is 55427311. The reversal of 55427303 is 30372455.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55427303 - 2²² = 51232999 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55427363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27713651 + 27713652.

It is an arithmetic number, because the mean of its divisors is an integer number (27713652).

Almost surely, 2^55427303 is an apocalyptic number.

55427303 is a deficient number, since it is larger than the sum of its proper divisors (1).

55427303 is an equidigital number, since it uses as much as digits as its factorization.

55427303 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12600, while the sum is 29.

The square root of 55427303 is about 7444.9515109234. The cubic root of 55427303 is about 381.2775628913.

Adding to 55427303 its reverse (30372455), we get a palindrome (85799758).

The spelling of 55427303 in words is "fifty-five million, four hundred twenty-seven thousand, three hundred three".