1025300205 has 12 divisors (see below), whose sum is σ = 1777187100. Its totient is φ = 546826752.

The previous prime is 1025300197. The next prime is 1025300251. The reversal of 1025300205 is 5020035201.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 780252489 + 245047716 = 27933^2 + 15654^2 .

It is not a de Polignac number, because 1025300205 - 2³ = 1025300197 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 11 ways as a sum of consecutive naturals, for example, 11392180 + ... + 11392269.

It is an arithmetic number, because the mean of its divisors is an integer number (148098925).

Almost surely, 2^1025300205 is an apocalyptic number.

1025300205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1025300205 is a deficient number, since it is larger than the sum of its proper divisors (751886895).

1025300205 is a wasteful number, since it uses less digits than its factorization.

1025300205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22784460 (or 22784457 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 1025300205 is about 32020.3092583441. The cubic root of 1025300205 is about 1008.3632625196.

Adding to 1025300205 its reverse (5020035201), we get a palindrome (6045335406).

The spelling of 1025300205 in words is "one billion, twenty-five million, three hundred thousand, two hundred five".