55555429 has 2 divisors, whose sum is σ = 55555430. Its totient is φ = 55555428.

The previous prime is 55555399. The next prime is 55555459. The reversal of 55555429 is 92455555.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (55555399) and next prime (55555459).

It can be written as a sum of positive squares in only one way, i.e., 51811204 + 3744225 = 7198^2 + 1935^2 .

It is a cyclic number.

It is not a de Polignac number, because 55555429 - 2¹⁵ = 55522661 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 55555391 and 55555400.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55555459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27777714 + 27777715.

It is an arithmetic number, because the mean of its divisors is an integer number (27777715).

Almost surely, 2^55555429 is an apocalyptic number.

It is an amenable number.

55555429 is a deficient number, since it is larger than the sum of its proper divisors (1).

55555429 is an equidigital number, since it uses as much as digits as its factorization.

55555429 is an evil number, because the sum of its binary digits is even.

The product of its digits is 225000, while the sum is 40.

The square root of 55555429 is about 7453.5514353897. The cubic root of 55555429 is about 381.5711244443.

The spelling of 55555429 in words is "fifty-five million, five hundred fifty-five thousand, four hundred twenty-nine".