53630447 has 4 divisors (see below), whose sum is σ = 57755880. Its totient is φ = 49505016.

The previous prime is 53630443. The next prime is 53630491. The reversal of 53630447 is 74403635.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74403635 = 5 ⋅14880727.

It is a cyclic number.

It is not a de Polignac number, because 53630447 - 2² = 53630443 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53630441) 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, 2062697 + ... + 2062722.

It is an arithmetic number, because the mean of its divisors is an integer number (14438970).

Almost surely, 2^53630447 is an apocalyptic number.

53630447 is a deficient number, since it is larger than the sum of its proper divisors (4125433).

53630447 is a wasteful number, since it uses less digits than its factorization.

53630447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4125432.

The product of its (nonzero) digits is 30240, while the sum is 32.

The square root of 53630447 is about 7323.2811635223. The cubic root of 53630447 is about 377.1121042267.

The spelling of 53630447 in words is "fifty-three million, six hundred thirty thousand, four hundred forty-seven".