52240865 has 4 divisors (see below), whose sum is σ = 62689044. Its totient is φ = 41792688.

The previous prime is 52240841. The next prime is 52240871. The reversal of 52240865 is 56804225.

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 6974881 + 45265984 = 2641^2 + 6728^2 .

It is a cyclic number.

It is not a de Polignac number, because 52240865 - 2⁶ = 52240801 is a prime.

It is a Duffinian 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, 5224082 + ... + 5224091.

It is an arithmetic number, because the mean of its divisors is an integer number (15672261).

Almost surely, 2^52240865 is an apocalyptic number.

It is an amenable number.

52240865 is a deficient number, since it is larger than the sum of its proper divisors (10448179).

52240865 is a wasteful number, since it uses less digits than its factorization.

52240865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10448178.

The product of its (nonzero) digits is 19200, while the sum is 32.

The square root of 52240865 is about 7227.7842386170. The cubic root of 52240865 is about 373.8265302656.

The spelling of 52240865 in words is "fifty-two million, two hundred forty thousand, eight hundred sixty-five".