52385739 has 16 divisors (see below), whose sum is σ = 81683712. Its totient is φ = 29238048.

The previous prime is 52385737. The next prime is 52385779. The reversal of 52385739 is 93758325.

It is not a de Polignac number, because 52385739 - 2¹ = 52385737 is a prime.

It is a super-2 number, since 2×52385739² = 5488531301152242, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 52385739.

It is not an unprimeable number, because it can be changed into a prime (52385737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28104 + ... + 29909.

It is an arithmetic number, because the mean of its divisors is an integer number (5105232).

Almost surely, 2^52385739 is an apocalyptic number.

52385739 is a deficient number, since it is larger than the sum of its proper divisors (29297973).

52385739 is a wasteful number, since it uses less digits than its factorization.

52385739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58066.

The product of its digits is 226800, while the sum is 42.

The square root of 52385739 is about 7237.7993202354. The cubic root of 52385739 is about 374.1717756875.

The spelling of 52385739 in words is "fifty-two million, three hundred eighty-five thousand, seven hundred thirty-nine".