1025285 has 12 divisors (see below), whose sum is σ = 1271172. Its totient is φ = 793728.

The previous prime is 1025281. The next prime is 1025303. The reversal of 1025285 is 5825201.

1025285 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 37249 + 988036 = 193^2 + 994^2 .

It is not a de Polignac number, because 1025285 - 2² = 1025281 is a prime.

It is a super-3 number, since 3×1025285³ = 3233367477495072375, which contains 333 as substring.

It is a hoax number, since the sum of its digits (23) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a Curzon number.

It is a zygodrome in base 4.

It is a self number, because there is not a number n which added to its sum of digits gives 1025285.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1025281) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14009 + ... + 14081.

It is an arithmetic number, because the mean of its divisors is an integer number (105931).

2^1025285 is an apocalyptic number.

It is an amenable number.

1025285 is a deficient number, since it is larger than the sum of its proper divisors (245887).

1025285 is an frugal number, since it uses more digits than its factorization.

1025285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184 (or 131 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 1025285 is about 1012.5635782508. The cubic root of 1025285 is about 100.8358277885.

The spelling of 1025285 in words is "one million, twenty-five thousand, two hundred eighty-five".