1255554 has 16 divisors (see below), whose sum is σ = 2790240. Its totient is φ = 418500.

The previous prime is 1255549. The next prime is 1255559. The reversal of 1255554 is 4555521.

It is an interprime number because it is at equal distance from previous prime (1255549) and next prime (1255559).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1255559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11572 + ... + 11679.

It is an arithmetic number, because the mean of its divisors is an integer number (174390).

2^1255554 is an apocalyptic number.

1255554 is an abundant number, since it is smaller than the sum of its proper divisors (1534686).

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

1255554 is a wasteful number, since it uses less digits than its factorization.

1255554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23262 (or 23256 counting only the distinct ones).

The product of its digits is 5000, while the sum is 27.

The square root of 1255554 is about 1120.5150601398. The cubic root of 1255554 is about 107.8810418595.

The spelling of 1255554 in words is "one million, two hundred fifty-five thousand, five hundred fifty-four".