525442885 has 32 divisors (see below), whose sum is σ = 730259712. Its totient is φ = 358702080.

The previous prime is 525442859. The next prime is 525442969. The reversal of 525442885 is 588244525.

It is not a de Polignac number, because 525442885 - 2¹¹ = 525440837 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 679359 + ... + 680131.

It is an arithmetic number, because the mean of its divisors is an integer number (22820616).

Almost surely, 2^525442885 is an apocalyptic number.

525442885 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

525442885 is a deficient number, since it is larger than the sum of its proper divisors (204816827).

525442885 is a wasteful number, since it uses less digits than its factorization.

525442885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1533.

The product of its digits is 512000, while the sum is 43.

The square root of 525442885 is about 22922.5409804411. The cubic root of 525442885 is about 806.9411047605.

The spelling of 525442885 in words is "five hundred twenty-five million, four hundred forty-two thousand, eight hundred eighty-five".