30450055 has 4 divisors (see below), whose sum is σ = 36540072. Its totient is φ = 24360040.

The previous prime is 30450053. The next prime is 30450061. The reversal of 30450055 is 55005403.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55005403 = 223 ⋅246661.

It is not a de Polignac number, because 30450055 - 2¹ = 30450053 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30450053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3045001 + ... + 3045010.

It is an arithmetic number, because the mean of its divisors is an integer number (9135018).

Almost surely, 2^30450055 is an apocalyptic number.

30450055 is a deficient number, since it is larger than the sum of its proper divisors (6090017).

30450055 is an equidigital number, since it uses as much as digits as its factorization.

30450055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6090016.

The product of its (nonzero) digits is 1500, while the sum is 22.

The square root of 30450055 is about 5518.1568480789. The cubic root of 30450055 is about 312.2693508717.

Adding to 30450055 its reverse (55005403), we get a palindrome (85455458).

The spelling of 30450055 in words is "thirty million, four hundred fifty thousand, fifty-five".