55303147 has 2 divisors, whose sum is σ = 55303148. Its totient is φ = 55303146.

The previous prime is 55303141. The next prime is 55303151. The reversal of 55303147 is 74130355.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55303147 - 2³ = 55303139 is a prime.

It is not a weakly prime, because it can be changed into another prime (55303141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27651573 + 27651574.

It is an arithmetic number, because the mean of its divisors is an integer number (27651574).

Almost surely, 2^55303147 is an apocalyptic number.

55303147 is a deficient number, since it is larger than the sum of its proper divisors (1).

55303147 is an equidigital number, since it uses as much as digits as its factorization.

55303147 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6300, while the sum is 28.

The square root of 55303147 is about 7436.6085684269. The cubic root of 55303147 is about 380.9926654738.

The spelling of 55303147 in words is "fifty-five million, three hundred three thousand, one hundred forty-seven".