53449609 has 8 divisors (see below), whose sum is σ = 55036800. Its totient is φ = 51876000.

The previous prime is 53449589. The next prime is 53449633. The reversal of 53449609 is 90694435.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 53449609 - 2⁵ = 53449577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53449009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4884 + ... + 11434.

It is an arithmetic number, because the mean of its divisors is an integer number (6879600).

Almost surely, 2^53449609 is an apocalyptic number.

It is an amenable number.

53449609 is a deficient number, since it is larger than the sum of its proper divisors (1587191).

53449609 is a wasteful number, since it uses less digits than its factorization.

53449609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6791.

The product of its (nonzero) digits is 116640, while the sum is 40.

The square root of 53449609 is about 7310.9239498165. The cubic root of 53449609 is about 376.6877619776.

The spelling of 53449609 in words is "fifty-three million, four hundred forty-nine thousand, six hundred nine".