53032247 has 4 divisors (see below), whose sum is σ = 53067576. Its totient is φ = 52996920.

The previous prime is 53032193. The next prime is 53032283. The reversal of 53032247 is 74223035.

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 53032247 - 2⁶ = 53032183 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 (53032297) 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, 15308 + ... + 18449.

It is an arithmetic number, because the mean of its divisors is an integer number (13266894).

Almost surely, 2^53032247 is an apocalyptic number.

53032247 is a deficient number, since it is larger than the sum of its proper divisors (35329).

53032247 is a wasteful number, since it uses less digits than its factorization.

53032247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35328.

The product of its (nonzero) digits is 5040, while the sum is 26.

The square root of 53032247 is about 7282.3242855561. The cubic root of 53032247 is about 375.7047417043.

The spelling of 53032247 in words is "fifty-three million, thirty-two thousand, two hundred forty-seven".