285268525 has 12 divisors (see below), whose sum is σ = 360408852. Its totient is φ = 223907840.

The previous prime is 285268519. The next prime is 285268537. The reversal of 285268525 is 525862582.

It can be written as a sum of positive squares in 6 ways, for example, as 35976004 + 249292521 = 5998^2 + 15789^2 .

It is not a de Polignac number, because 285268525 - 2¹³ = 285260333 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 (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 106324 + ... + 108973.

It is an arithmetic number, because the mean of its divisors is an integer number (30034071).

Almost surely, 2^285268525 is an apocalyptic number.

285268525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

285268525 is a deficient number, since it is larger than the sum of its proper divisors (75140327).

285268525 is a wasteful number, since it uses less digits than its factorization.

285268525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215360 (or 215355 counting only the distinct ones).

The product of its digits is 384000, while the sum is 43.

The square root of 285268525 is about 16889.8941678153. The cubic root of 285268525 is about 658.2910524930.

The spelling of 285268525 in words is "two hundred eighty-five million, two hundred sixty-eight thousand, five hundred twenty-five".