1255530 has 16 divisors (see below), whose sum is σ = 3013344. Its totient is φ = 334800.

The previous prime is 1255519. The next prime is 1255549. The reversal of 1255530 is 355521.

It is a junction number, because it is equal to n+sod(n) for n = 1255497 and 1255506.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20896 + ... + 20955.

It is an arithmetic number, because the mean of its divisors is an integer number (188334).

2^1255530 is an apocalyptic number.

1255530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1255530 is an abundant number, since it is smaller than the sum of its proper divisors (1757814).

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

1255530 is a wasteful number, since it uses less digits than its factorization.

1255530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41861.

The product of its (nonzero) digits is 750, while the sum is 21.

The square root of 1255530 is about 1120.5043507278. The cubic root of 1255530 is about 107.8803544706.

Subtracting from 1255530 its reverse (355521), we obtain a palindrome (900009).

The spelling of 1255530 in words is "one million, two hundred fifty-five thousand, five hundred thirty".