53425409 has 8 divisors (see below), whose sum is σ = 54240000. Its totient is φ = 52614432.

The previous prime is 53425387. The next prime is 53425423. The reversal of 53425409 is 90452435.

It is a happy number.

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 53425409 - 2⁸ = 53425153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53425429) 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, 46757 + ... + 47885.

It is an arithmetic number, because the mean of its divisors is an integer number (6780000).

Almost surely, 2^53425409 is an apocalyptic number.

It is an amenable number.

53425409 is a deficient number, since it is larger than the sum of its proper divisors (814591).

53425409 is a wasteful number, since it uses less digits than its factorization.

53425409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1807.

The product of its (nonzero) digits is 21600, while the sum is 32.

The square root of 53425409 is about 7309.2687048705. The cubic root of 53425409 is about 376.6309033143.

The spelling of 53425409 in words is "fifty-three million, four hundred twenty-five thousand, four hundred nine".