1125253850 has 24 divisors (see below), whose sum is σ = 2391968928. Its totient is φ = 385801200.

The previous prime is 1125253847. The next prime is 1125253859. The reversal of 1125253850 is 583525211.

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (1125253859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1607156 + ... + 1607855.

It is an arithmetic number, because the mean of its divisors is an integer number (99665372).

Almost surely, 2^1125253850 is an apocalyptic number.

1125253850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1125253850 is an abundant number, since it is smaller than the sum of its proper divisors (1266715078).

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

1125253850 is a wasteful number, since it uses less digits than its factorization.

1125253850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3215030 (or 3215025 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 32.

The square root of 1125253850 is about 33544.8036214255. The cubic root of 1125253850 is about 1040.1201322027.

The spelling of 1125253850 in words is "one billion, one hundred twenty-five million, two hundred fifty-three thousand, eight hundred fifty".