53980385 has 8 divisors (see below), whose sum is σ = 65046696. Its totient is φ = 43004160.

The previous prime is 53980357. The next prime is 53980391. The reversal of 53980385 is 58308935.

It can be written as a sum of positive squares in 4 ways, for example, as 6315169 + 47665216 = 2513^2 + 6904^2 .

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

It is not a de Polignac number, because 53980385 - 2¹² = 53976289 is a prime.

It is a Duffinian number.

It is a Curzon 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, 21194 + ... + 23603.

It is an arithmetic number, because the mean of its divisors is an integer number (8130837).

Almost surely, 2^53980385 is an apocalyptic number.

It is an amenable number.

53980385 is a deficient number, since it is larger than the sum of its proper divisors (11066311).

53980385 is a wasteful number, since it uses less digits than its factorization.

53980385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45043.

The product of its (nonzero) digits is 129600, while the sum is 41.

The square root of 53980385 is about 7347.1344754265. The cubic root of 53980385 is about 377.9305439605.

The spelling of 53980385 in words is "fifty-three million, nine hundred eighty thousand, three hundred eighty-five".