53785493 has 4 divisors (see below), whose sum is σ = 53806368. Its totient is φ = 53764620.

The previous prime is 53785471. The next prime is 53785499. The reversal of 53785493 is 39458735.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 53785493 - 2¹⁰ = 53784469 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 (53785499) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5921 + ... + 11942.

It is an arithmetic number, because the mean of its divisors is an integer number (13451592).

Almost surely, 2^53785493 is an apocalyptic number.

It is an amenable number.

53785493 is a deficient number, since it is larger than the sum of its proper divisors (20875).

53785493 is a wasteful number, since it uses less digits than its factorization.

53785493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20874.

The product of its digits is 453600, while the sum is 44.

The square root of 53785493 is about 7333.8593523465. The cubic root of 53785493 is about 377.4751658297.

The spelling of 53785493 in words is "fifty-three million, seven hundred eighty-five thousand, four hundred ninety-three".