53384665 has 8 divisors (see below), whose sum is σ = 65624328. Its totient is φ = 41665920.

The previous prime is 53384657. The next prime is 53384689. The reversal of 53384665 is 56648335.

It can be written as a sum of positive squares in 4 ways, for example, as 5234944 + 48149721 = 2288^2 + 6939^2 .

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

It is not a de Polignac number, because 53384665 - 2³ = 53384657 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, 130002 + ... + 130411.

It is an arithmetic number, because the mean of its divisors is an integer number (8203041).

Almost surely, 2^53384665 is an apocalyptic number.

It is an amenable number.

53384665 is a deficient number, since it is larger than the sum of its proper divisors (12239663).

53384665 is a wasteful number, since it uses less digits than its factorization.

53384665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260459.

The product of its digits is 259200, while the sum is 40.

The square root of 53384665 is about 7306.4810271430. The cubic root of 53384665 is about 376.5351351992.

The spelling of 53384665 in words is "fifty-three million, three hundred eighty-four thousand, six hundred sixty-five".