55306429 has 2 divisors, whose sum is σ = 55306430. Its totient is φ = 55306428.

The previous prime is 55306411. The next prime is 55306441. The reversal of 55306429 is 92460355.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 33235225 + 22071204 = 5765^2 + 4698^2 .

It is a cyclic number.

It is not a de Polignac number, because 55306429 - 2⁷ = 55306301 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55306394 and 55306403.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55306409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27653214 + 27653215.

It is an arithmetic number, because the mean of its divisors is an integer number (27653215).

Almost surely, 2^55306429 is an apocalyptic number.

It is an amenable number.

55306429 is a deficient number, since it is larger than the sum of its proper divisors (1).

55306429 is an equidigital number, since it uses as much as digits as its factorization.

55306429 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 34.

The square root of 55306429 is about 7436.8292302567. The cubic root of 55306429 is about 381.0002020744. Note that the first 3 decimals are identical.

The spelling of 55306429 in words is "fifty-five million, three hundred six thousand, four hundred twenty-nine".