53643049 has 4 divisors (see below), whose sum is σ = 54655236. Its totient is φ = 52630864.

The previous prime is 53643043. The next prime is 53643067. The reversal of 53643049 is 94034635.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 45319824 + 8323225 = 6732^2 + 2885^2 .

It is a cyclic number.

It is not a de Polignac number, because 53643049 - 2⁷ = 53642921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53643043) 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, 506014 + ... + 506119.

It is an arithmetic number, because the mean of its divisors is an integer number (13663809).

Almost surely, 2^53643049 is an apocalyptic number.

It is an amenable number.

53643049 is a deficient number, since it is larger than the sum of its proper divisors (1012187).

53643049 is a wasteful number, since it uses less digits than its factorization.

53643049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1012186.

The product of its (nonzero) digits is 38880, while the sum is 34.

The square root of 53643049 is about 7324.1415196595. The cubic root of 53643049 is about 377.1416396543.

The spelling of 53643049 in words is "fifty-three million, six hundred forty-three thousand, forty-nine".