30455057 has 2 divisors, whose sum is σ = 30455058. Its totient is φ = 30455056.

The previous prime is 30455003. The next prime is 30455063. The reversal of 30455057 is 75055403.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25441936 + 5013121 = 5044^2 + 2239^2 .

It is a cyclic number.

It is not a de Polignac number, because 30455057 - 2¹⁶ = 30389521 is a prime.

It is not a weakly prime, because it can be changed into another prime (30455357) by changing a digit.

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

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15227528 + 15227529.

It is an arithmetic number, because the mean of its divisors is an integer number (15227529).

Almost surely, 2^30455057 is an apocalyptic number.

It is an amenable number.

30455057 is a deficient number, since it is larger than the sum of its proper divisors (1).

30455057 is an equidigital number, since it uses as much as digits as its factorization.

30455057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10500, while the sum is 29.

The square root of 30455057 is about 5518.6100605134. The cubic root of 30455057 is about 312.2864486599.

The spelling of 30455057 in words is "thirty million, four hundred fifty-five thousand, fifty-seven".