52001897 has 4 divisors (see below), whose sum is σ = 52302660. Its totient is φ = 51701136.

The previous prime is 52001869. The next prime is 52001941. The reversal of 52001897 is 79810025.

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 42367081 + 9634816 = 6509^2 + 3104^2 .

It is a cyclic number.

It is not a de Polignac number, because 52001897 - 2⁸ = 52001641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52001837) 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, 150122 + ... + 150467.

It is an arithmetic number, because the mean of its divisors is an integer number (13075665).

Almost surely, 2^52001897 is an apocalyptic number.

It is an amenable number.

52001897 is a deficient number, since it is larger than the sum of its proper divisors (300763).

52001897 is a wasteful number, since it uses less digits than its factorization.

52001897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300762.

The product of its (nonzero) digits is 5040, while the sum is 32.

The square root of 52001897 is about 7211.2340830124. The cubic root of 52001897 is about 373.2556544558.

The spelling of 52001897 in words is "fifty-two million, one thousand, eight hundred ninety-seven".