53450409 has 8 divisors (see below), whose sum is σ = 71316000. Its totient is φ = 35609216.

The previous prime is 53450387. The next prime is 53450437. The reversal of 53450409 is 90405435.

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 53450409 - 2⁵ = 53450377 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (53450209) 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, 159 + ... + 10340.

It is an arithmetic number, because the mean of its divisors is an integer number (8914500).

Almost surely, 2^53450409 is an apocalyptic number.

It is an amenable number.

53450409 is a deficient number, since it is larger than the sum of its proper divisors (17865591).

53450409 is a wasteful number, since it uses less digits than its factorization.

53450409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12199.

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 53450409 is about 7310.9786622586. The cubic root of 53450409 is about 376.6896413097.

The spelling of 53450409 in words is "fifty-three million, four hundred fifty thousand, four hundred nine".