53047745 has 8 divisors (see below), whose sum is σ = 63698280. Its totient is φ = 42410880.

The previous prime is 53047741. The next prime is 53047759. The reversal of 53047745 is 54774035.

It can be written as a sum of positive squares in 4 ways, for example, as 760384 + 52287361 = 872^2 + 7231^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 53047745 - 2² = 53047741 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53047741) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9725 + ... + 14165.

It is an arithmetic number, because the mean of its divisors is an integer number (7962285).

Almost surely, 2^53047745 is an apocalyptic number.

It is an amenable number.

53047745 is a deficient number, since it is larger than the sum of its proper divisors (10650535).

53047745 is a wasteful number, since it uses less digits than its factorization.

53047745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6835.

The product of its (nonzero) digits is 58800, while the sum is 35.

The square root of 53047745 is about 7283.3882911733. The cubic root of 53047745 is about 375.7413364513.

The spelling of 53047745 in words is "fifty-three million, forty-seven thousand, seven hundred forty-five".