90306053 has 2 divisors, whose sum is σ = 90306054. Its totient is φ = 90306052.

The previous prime is 90306043. The next prime is 90306059. The reversal of 90306053 is 35060309.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 85803169 + 4502884 = 9263^2 + 2122^2 .

It is a cyclic number.

It is not a de Polignac number, because 90306053 - 2¹⁰ = 90305029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90306059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45153026 + 45153027.

It is an arithmetic number, because the mean of its divisors is an integer number (45153027).

Almost surely, 2^90306053 is an apocalyptic number.

It is an amenable number.

90306053 is a deficient number, since it is larger than the sum of its proper divisors (1).

90306053 is an equidigital number, since it uses as much as digits as its factorization.

90306053 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2430, while the sum is 26.

The square root of 90306053 is about 9502.9496999616. The cubic root of 90306053 is about 448.6478804364.

The spelling of 90306053 in words is "ninety million, three hundred six thousand, fifty-three".