53938261 has 8 divisors (see below), whose sum is σ = 58184504. Its totient is φ = 49705920.

The previous prime is 53938253. The next prime is 53938301. The reversal of 53938261 is 16283935.

It can be written as a sum of positive squares in 4 ways, for example, as 20875761 + 33062500 = 4569^2 + 5750^2 .

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 53938261 - 2³ = 53938253 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 53938261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53938201) 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, 5455 + ... + 11731.

It is an arithmetic number, because the mean of its divisors is an integer number (7273063).

Almost surely, 2^53938261 is an apocalyptic number.

It is an amenable number.

53938261 is a deficient number, since it is larger than the sum of its proper divisors (4246243).

53938261 is a wasteful number, since it uses less digits than its factorization.

53938261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6951.

The product of its digits is 38880, while the sum is 37.

The square root of 53938261 is about 7344.2672200840. The cubic root of 53938261 is about 377.8322113957.

The spelling of 53938261 in words is "fifty-three million, nine hundred thirty-eight thousand, two hundred sixty-one".