1255043205 has 48 divisors (see below), whose sum is σ = 2356479216. Its totient is φ = 614246400.

The previous prime is 1255043197. The next prime is 1255043227. The reversal of 1255043205 is 5023405521.

It is a happy number.

1255043205 is a `hidden beast` number, since 125 + 504 + 32 + 0 + 5 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 9941409 + 1245101796 = 3153^2 + 35286^2 .

It is not a de Polignac number, because 1255043205 - 2³ = 1255043197 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 95005 + ... + 107405.

It is an arithmetic number, because the mean of its divisors is an integer number (49093317).

Almost surely, 2^1255043205 is an apocalyptic number.

1255043205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1255043205 is a deficient number, since it is larger than the sum of its proper divisors (1101436011).

1255043205 is a wasteful number, since it uses less digits than its factorization.

1255043205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12598 (or 12595 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 1255043205 is about 35426.5889551901. The cubic root of 1255043205 is about 1078.6641018526.

Adding to 1255043205 its reverse (5023405521), we get a palindrome (6278448726).

It can be divided in two parts, 12550 and 43205, that added together give a palindrome (55755).

The spelling of 1255043205 in words is "one billion, two hundred fifty-five million, forty-three thousand, two hundred five".