1255702513 has 8 divisors (see below), whose sum is σ = 1367490600. Its totient is φ = 1146085248.

The previous prime is 1255702489. The next prime is 1255702517. The reversal of 1255702513 is 3152075521.

It can be written as a sum of positive squares in 4 ways, for example, as 4524129 + 1251178384 = 2127^2 + 35372^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1255702513 - 2¹⁷ = 1255571441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1255702517) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 541498 + ... + 543811.

It is an arithmetic number, because the mean of its divisors is an integer number (170936325).

Almost surely, 2^1255702513 is an apocalyptic number.

1255702513 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1255702513 is a deficient number, since it is larger than the sum of its proper divisors (111788087).

1255702513 is a wasteful number, since it uses less digits than its factorization.

1255702513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1085411.

The product of its (nonzero) digits is 10500, while the sum is 31.

The square root of 1255702513 is about 35435.8930041279. The cubic root of 1255702513 is about 1078.8529525558.

The spelling of 1255702513 in words is "one billion, two hundred fifty-five million, seven hundred two thousand, five hundred thirteen".