1125550 has 12 divisors (see below), whose sum is σ = 2093616. Its totient is φ = 450200.

The previous prime is 1125539. The next prime is 1125557. The reversal of 1125550 is 555211.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1125557) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11206 + ... + 11305.

It is an arithmetic number, because the mean of its divisors is an integer number (174468).

2^1125550 is an apocalyptic number.

1125550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1125550 is a deficient number, since it is larger than the sum of its proper divisors (968066).

1125550 is a wasteful number, since it uses less digits than its factorization.

1125550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22523 (or 22518 counting only the distinct ones).

The product of its (nonzero) digits is 250, while the sum is 19.

The square root of 1125550 is about 1060.9194125851. The cubic root of 1125550 is about 104.0211372225.

The spelling of 1125550 in words is "one million, one hundred twenty-five thousand, five hundred fifty".