52897945 has 4 divisors (see below), whose sum is σ = 63477540. Its totient is φ = 42318352.

The previous prime is 52897937. The next prime is 52897961. The reversal of 52897945 is 54979825.

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 36929929 + 15968016 = 6077^2 + 3996^2 .

It is a cyclic number.

It is not a de Polignac number, because 52897945 - 2³ = 52897937 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5289790 + ... + 5289799.

It is an arithmetic number, because the mean of its divisors is an integer number (15869385).

Almost surely, 2^52897945 is an apocalyptic number.

It is an amenable number.

52897945 is a deficient number, since it is larger than the sum of its proper divisors (10579595).

52897945 is a wasteful number, since it uses less digits than its factorization.

52897945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10579594.

The product of its digits is 907200, while the sum is 49.

The square root of 52897945 is about 7273.0973456980. The cubic root of 52897945 is about 375.3873212963.

The spelling of 52897945 in words is "fifty-two million, eight hundred ninety-seven thousand, nine hundred forty-five".