52185789 has 20 divisors (see below), whose sum is σ = 79774816. Its totient is φ = 33979176.

The previous prime is 52185769. The next prime is 52185797. The reversal of 52185789 is 98758125.

It is a happy number.

It is not a de Polignac number, because 52185789 - 2¹¹ = 52183741 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 (52185769) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 4009 + ... + 10974.

Almost surely, 2^52185789 is an apocalyptic number.

It is an amenable number.

52185789 is a deficient number, since it is larger than the sum of its proper divisors (27589027).

52185789 is a wasteful number, since it uses less digits than its factorization.

52185789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15038 (or 15029 counting only the distinct ones).

The product of its digits is 201600, while the sum is 45.

The square root of 52185789 is about 7223.9732142361. The cubic root of 52185789 is about 373.6951126507.

The spelling of 52185789 in words is "fifty-two million, one hundred eighty-five thousand, seven hundred eighty-nine".