424400055 has 32 divisors (see below), whose sum is σ = 718502400. Its totient is φ = 213316992.

The previous prime is 424400051. The next prime is 424400057. The reversal of 424400055 is 550004424.

It is not a de Polignac number, because 424400055 - 2² = 424400051 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 424399998 and 424400034.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (424400051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 52366 + ... + 59924.

It is an arithmetic number, because the mean of its divisors is an integer number (22453200).

Almost surely, 2^424400055 is an apocalyptic number.

424400055 is a deficient number, since it is larger than the sum of its proper divisors (294102345).

424400055 is a wasteful number, since it uses less digits than its factorization.

424400055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7783.

The product of its (nonzero) digits is 3200, while the sum is 24.

The square root of 424400055 is about 20600.9721857974. The cubic root of 424400055 is about 751.4933534427.

Adding to 424400055 its reverse (550004424), we get a palindrome (974404479).

The spelling of 424400055 in words is "four hundred twenty-four million, four hundred thousand, fifty-five".