1255542 has 8 divisors (see below), whose sum is σ = 2511096. Its totient is φ = 418512.

The previous prime is 1255519. The next prime is 1255549. The reversal of 1255542 is 2455521.

It is a happy number.

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

1255542 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1255549) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 104623 + ... + 104634.

It is an arithmetic number, because the mean of its divisors is an integer number (313887).

2^1255542 is an apocalyptic number.

1255542 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1255542 is a wasteful number, since it uses less digits than its factorization.

1255542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209262.

The product of its digits is 2000, while the sum is 24.

The square root of 1255542 is about 1120.5097054466. The cubic root of 1255542 is about 107.8806981661.

The spelling of 1255542 in words is "one million, two hundred fifty-five thousand, five hundred forty-two".