52487189 has 4 divisors (see below), whose sum is σ = 52521420. Its totient is φ = 52452960.

The previous prime is 52487153. The next prime is 52487191. The reversal of 52487189 is 98178425.

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 43784689 + 8702500 = 6617^2 + 2950^2 .

It is a cyclic number.

It is not a de Polignac number, because 52487189 - 2¹⁶ = 52421653 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 (52487489) 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, 14702 + ... + 17919.

It is an arithmetic number, because the mean of its divisors is an integer number (13130355).

Almost surely, 2^52487189 is an apocalyptic number.

It is an amenable number.

52487189 is a deficient number, since it is larger than the sum of its proper divisors (34231).

52487189 is a wasteful number, since it uses less digits than its factorization.

52487189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34230.

The product of its digits is 161280, while the sum is 44.

The square root of 52487189 is about 7244.8042761692. The cubic root of 52487189 is about 374.4131597581.

The spelling of 52487189 in words is "fifty-two million, four hundred eighty-seven thousand, one hundred eighty-nine".