1025800 has 48 divisors (see below), whose sum is σ = 2499840. Its totient is φ = 390720.

The previous prime is 1025789. The next prime is 1025803. The reversal of 1025800 is 85201.

It is a happy number.

1025800 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (1025803) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4489 + ... + 4711.

It is an arithmetic number, because the mean of its divisors is an integer number (52080).

2^1025800 is an apocalyptic number.

1025800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1025800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1249920).

1025800 is an abundant number, since it is smaller than the sum of its proper divisors (1474040).

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

1025800 is a wasteful number, since it uses less digits than its factorization.

1025800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262 (or 253 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 1025800 is about 1012.8178513435. The cubic root of 1025800 is about 100.8527082198.

The spelling of 1025800 in words is "one million, twenty-five thousand, eight hundred".