866250485 has 16 divisors (see below), whose sum is σ = 1056622320. Its totient is φ = 681638400.

The previous prime is 866250461. The next prime is 866250491. The reversal of 866250485 is 584052668.

It can be written as a sum of positive squares in 8 ways, for example, as 10278436 + 855972049 = 3206^2 + 29257^2 .

It is not a de Polignac number, because 866250485 - 2²⁶ = 799141621 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 138935 + ... + 145035.

It is an arithmetic number, because the mean of its divisors is an integer number (66038895).

Almost surely, 2^866250485 is an apocalyptic number.

It is an amenable number.

866250485 is a deficient number, since it is larger than the sum of its proper divisors (190371835).

866250485 is a wasteful number, since it uses less digits than its factorization.

866250485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6568.

The product of its (nonzero) digits is 460800, while the sum is 44.

The square root of 866250485 is about 29432.1335448180. The cubic root of 866250485 is about 953.2668638216.

The spelling of 866250485 in words is "eight hundred sixty-six million, two hundred fifty thousand, four hundred eighty-five".