83525439 has 32 divisors (see below), whose sum is σ = 119218176. Its totient is φ = 51932160.

The previous prime is 83525417. The next prime is 83525441. The reversal of 83525439 is 93452538.

It is not a de Polignac number, because 83525439 - 2¹² = 83521343 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 83525397 and 83525406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83525459) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 423889 + ... + 424085.

It is an arithmetic number, because the mean of its divisors is an integer number (3725568).

Almost surely, 2^83525439 is an apocalyptic number.

83525439 is a deficient number, since it is larger than the sum of its proper divisors (35692737).

83525439 is a wasteful number, since it uses less digits than its factorization.

83525439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375.

The product of its digits is 129600, while the sum is 39.

The square root of 83525439 is about 9139.2252953957. The cubic root of 83525439 is about 437.1256143001.

The spelling of 83525439 in words is "eighty-three million, five hundred twenty-five thousand, four hundred thirty-nine".