1255511413 has 16 divisors (see below), whose sum is σ = 1404814320. Its totient is φ = 1114089984.

The previous prime is 1255511363. The next prime is 1255511441. The reversal of 1255511413 is 3141155521.

It can be written as a sum of positive squares in 8 ways, for example, as 527483089 + 728028324 = 22967^2 + 26982^2 .

It is not a de Polignac number, because 1255511413 - 2¹⁷ = 1255380341 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1255511443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80695 + ... + 94987.

It is an arithmetic number, because the mean of its divisors is an integer number (87800895).

Almost surely, 2^1255511413 is an apocalyptic number.

1255511413 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1255511413 is a deficient number, since it is larger than the sum of its proper divisors (149302907).

1255511413 is a wasteful number, since it uses less digits than its factorization.

1255511413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14568.

The product of its digits is 3000, while the sum is 28.

The square root of 1255511413 is about 35433.1964829593. The cubic root of 1255511413 is about 1078.7982211056.

Adding to 1255511413 its reverse (3141155521), we get a palindrome (4396666934).

The spelling of 1255511413 in words is "one billion, two hundred fifty-five million, five hundred eleven thousand, four hundred thirteen".