306056053 has 4 divisors (see below), whose sum is σ = 316609740. Its totient is φ = 295502368.

The previous prime is 306056039. The next prime is 306056071. The reversal of 306056053 is 350650603.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 104898564 + 201157489 = 10242^2 + 14183^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-306056053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (306056353) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5276800 + ... + 5276857.

It is an arithmetic number, because the mean of its divisors is an integer number (79152435).

Almost surely, 2^306056053 is an apocalyptic number.

It is an amenable number.

306056053 is a deficient number, since it is larger than the sum of its proper divisors (10553687).

306056053 is a wasteful number, since it uses less digits than its factorization.

306056053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10553686.

The product of its (nonzero) digits is 8100, while the sum is 28.

The square root of 306056053 is about 17494.4577795369. The cubic root of 306056053 is about 673.9075537927.

The spelling of 306056053 in words is "three hundred six million, fifty-six thousand, fifty-three".