1255513 has 8 divisors (see below), whose sum is σ = 1456832. Its totient is φ = 1059696.

The previous prime is 1255477. The next prime is 1255519. The reversal of 1255513 is 3155521.

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 1255513 - 2¹³ = 1247321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1255519) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 870 + ... + 1807.

It is an arithmetic number, because the mean of its divisors is an integer number (182104).

2^1255513 is an apocalyptic number.

It is an amenable number.

1255513 is a deficient number, since it is larger than the sum of its proper divisors (201319).

1255513 is an equidigital number, since it uses as much as digits as its factorization.

1255513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2751.

The product of its digits is 750, while the sum is 22.

The square root of 1255513 is about 1120.4967648325. The cubic root of 1255513 is about 107.8798675649.

The spelling of 1255513 in words is "one million, two hundred fifty-five thousand, five hundred thirteen".