1255275 has 36 divisors (see below), whose sum is σ = 2572752. Its totient is φ = 573120.

The previous prime is 1255259. The next prime is 1255279. The reversal of 1255275 is 5725521.

It is a happy number.

It is not a de Polignac number, because 1255275 - 2⁴ = 1255259 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1255279) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1177 + ... + 1973.

2^1255275 is an apocalyptic number.

1255275 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1255275 is an abundant number, since it is smaller than the sum of its proper divisors (1317477).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1255275 is a wasteful number, since it uses less digits than its factorization.

1255275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 820 (or 812 counting only the distinct ones).

The product of its digits is 3500, while the sum is 27.

The square root of 1255275 is about 1120.3905569042. The cubic root of 1255275 is about 107.8730504229.

The spelling of 1255275 in words is "one million, two hundred fifty-five thousand, two hundred seventy-five".