53633009 has 2 divisors, whose sum is σ = 53633010. Its totient is φ = 53633008.

The previous prime is 53633003. The next prime is 53633051. The reversal of 53633009 is 90033635.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29593600 + 24039409 = 5440^2 + 4903^2 .

It is a cyclic number.

It is not a de Polignac number, because 53633009 - 2⁴ = 53632993 is a prime.

It is not a weakly prime, because it can be changed into another prime (53633003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26816504 + 26816505.

It is an arithmetic number, because the mean of its divisors is an integer number (26816505).

Almost surely, 2^53633009 is an apocalyptic number.

It is an amenable number.

53633009 is a deficient number, since it is larger than the sum of its proper divisors (1).

53633009 is an equidigital number, since it uses as much as digits as its factorization.

53633009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7290, while the sum is 29.

The square root of 53633009 is about 7323.4560830253. The cubic root of 53633009 is about 377.1181091852.

The spelling of 53633009 in words is "fifty-three million, six hundred thirty-three thousand, nine".