53090447 has 4 divisors (see below), whose sum is σ = 53175216. Its totient is φ = 53005680.

The previous prime is 53090441. The next prime is 53090467. The reversal of 53090447 is 74409035.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 53090447 - 2¹⁰ = 53089423 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 (53090441) 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, 41438 + ... + 42699.

It is an arithmetic number, because the mean of its divisors is an integer number (13293804).

Almost surely, 2^53090447 is an apocalyptic number.

53090447 is a deficient number, since it is larger than the sum of its proper divisors (84769).

53090447 is an equidigital number, since it uses as much as digits as its factorization.

53090447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84768.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 53090447 is about 7286.3191667673. The cubic root of 53090447 is about 375.8421299486.

The spelling of 53090447 in words is "fifty-three million, ninety thousand, four hundred forty-seven".