53219633 has 4 divisors (see below), whose sum is σ = 54092148. Its totient is φ = 52347120.

The previous prime is 53219609. The next prime is 53219659. The reversal of 53219633 is 33691235.

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 16834609 + 36385024 = 4103^2 + 6032^2 .

It is a cyclic number.

It is not a de Polignac number, because 53219633 - 2²² = 49025329 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 53219633.

It is not an unprimeable number, because it can be changed into a prime (53219603) 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, 436166 + ... + 436287.

It is an arithmetic number, because the mean of its divisors is an integer number (13523037).

Almost surely, 2^53219633 is an apocalyptic number.

It is an amenable number.

53219633 is a deficient number, since it is larger than the sum of its proper divisors (872515).

53219633 is an equidigital number, since it uses as much as digits as its factorization.

53219633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 872514.

The product of its digits is 14580, while the sum is 32.

The square root of 53219633 is about 7295.1787503803. The cubic root of 53219633 is about 376.1467309657.

The spelling of 53219633 in words is "fifty-three million, two hundred nineteen thousand, six hundred thirty-three".