53730865 has 8 divisors (see below), whose sum is σ = 65976768. Its totient is φ = 41984880.

The previous prime is 53730839. The next prime is 53730893. The reversal of 53730865 is 56803735.

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

It is not a de Polignac number, because 53730865 - 2¹³ = 53722673 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124741 + ... + 125170.

It is an arithmetic number, because the mean of its divisors is an integer number (8247096).

Almost surely, 2^53730865 is an apocalyptic number.

It is an amenable number.

53730865 is a deficient number, since it is larger than the sum of its proper divisors (12245903).

53730865 is a wasteful number, since it uses less digits than its factorization.

53730865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249959.

The product of its (nonzero) digits is 75600, while the sum is 37.

The square root of 53730865 is about 7330.1340369737. The cubic root of 53730865 is about 377.3473265346.

The spelling of 53730865 in words is "fifty-three million, seven hundred thirty thousand, eight hundred sixty-five".