1025250 has 32 divisors (see below), whose sum is σ = 2560896. Its totient is φ = 273200.

The previous prime is 1025239. The next prime is 1025257. The reversal of 1025250 is 525201.

It is a super-2 number, since 2×1025250² = 2102275125000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (1025257) 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 15 ways as a sum of consecutive naturals, for example, 67 + ... + 1433.

It is an arithmetic number, because the mean of its divisors is an integer number (80028).

2^1025250 is an apocalyptic number.

1025250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1025250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1280448).

1025250 is an abundant number, since it is smaller than the sum of its proper divisors (1535646).

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

1025250 is a wasteful number, since it uses less digits than its factorization.

1025250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1387 (or 1377 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 15.

The square root of 1025250 is about 1012.5462952379. The cubic root of 1025250 is about 100.8346803697.

It can be divided in two parts, 1025 and 250, that added together give a triangular number (1275 = T₅₀).

The spelling of 1025250 in words is "one million, twenty-five thousand, two hundred fifty".