53905247 has 4 divisors (see below), whose sum is σ = 58805736. Its totient is φ = 49004760.

The previous prime is 53905217. The next prime is 53905279. The reversal of 53905247 is 74250935.

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 53905247 - 2⁶ = 53905183 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53905217) 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, 2450228 + ... + 2450249.

It is an arithmetic number, because the mean of its divisors is an integer number (14701434).

Almost surely, 2^53905247 is an apocalyptic number.

53905247 is a deficient number, since it is larger than the sum of its proper divisors (4900489).

53905247 is a wasteful number, since it uses less digits than its factorization.

53905247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4900488.

The product of its (nonzero) digits is 37800, while the sum is 35.

The square root of 53905247 is about 7342.0192726524. The cubic root of 53905247 is about 377.7551090556.

The spelling of 53905247 in words is "fifty-three million, nine hundred five thousand, two hundred forty-seven".