53030447 has 2 divisors, whose sum is σ = 53030448. Its totient is φ = 53030446.

The previous prime is 53030413. The next prime is 53030459. The reversal of 53030447 is 74403035.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 53030447 - 2¹⁰ = 53029423 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53030347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26515223 + 26515224.

It is an arithmetic number, because the mean of its divisors is an integer number (26515224).

Almost surely, 2^53030447 is an apocalyptic number.

53030447 is the 3893-rd centered heptagonal number.

53030447 is a deficient number, since it is larger than the sum of its proper divisors (1).

53030447 is an equidigital number, since it uses as much as digits as its factorization.

53030447 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5040, while the sum is 26.

The square root of 53030447 is about 7282.2006975914. The cubic root of 53030447 is about 375.7004909812.

The spelling of 53030447 in words is "fifty-three million, thirty thousand, four hundred forty-seven".