53485309 has 8 divisors (see below), whose sum is σ = 55440000. Its totient is φ = 51538032.

The previous prime is 53485301. The next prime is 53485337. The reversal of 53485309 is 90358435.

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 53485309 - 2³ = 53485301 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53485301) 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, 15832 + ... + 18910.

It is an arithmetic number, because the mean of its divisors is an integer number (6930000).

Almost surely, 2^53485309 is an apocalyptic number.

It is an amenable number.

53485309 is a deficient number, since it is larger than the sum of its proper divisors (1954691).

53485309 is a wasteful number, since it uses less digits than its factorization.

53485309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3707.

The product of its (nonzero) digits is 64800, while the sum is 37.

The square root of 53485309 is about 7313.3650941273. The cubic root of 53485309 is about 376.7716089284.

The spelling of 53485309 in words is "fifty-three million, four hundred eighty-five thousand, three hundred nine".