53307633 has 4 divisors (see below), whose sum is σ = 71076848. Its totient is φ = 35538420.

The previous prime is 53307619. The next prime is 53307643. The reversal of 53307633 is 33670335.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 53307633 - 2⁵ = 53307601 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 53307633.

It is not an unprimeable number, because it can be changed into a prime (53307643) 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, 8884603 + ... + 8884608.

It is an arithmetic number, because the mean of its divisors is an integer number (17769212).

Almost surely, 2^53307633 is an apocalyptic number.

It is an amenable number.

53307633 is a deficient number, since it is larger than the sum of its proper divisors (17769215).

53307633 is a wasteful number, since it uses less digits than its factorization.

53307633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17769214.

The product of its (nonzero) digits is 17010, while the sum is 30.

The square root of 53307633 is about 7301.2076398360. The cubic root of 53307633 is about 376.3539394889.

Adding to 53307633 its reverse (33670335), we get a palindrome (86977968).

The spelling of 53307633 in words is "fifty-three million, three hundred seven thousand, six hundred thirty-three".