10250000 has 70 divisors (see below), whose sum is σ = 25429362. Its totient is φ = 4000000.

The previous prime is 10249979. The next prime is 10250017. The reversal of 10250000 is 5201.

It can be written as a sum of positive squares in 7 ways, for example, as 9265936 + 984064 = 3044^2 + 992^2 .

It is a Harshad number since it is a multiple of its sum of digits (8).

It is a self number, because there is not a number n which added to its sum of digits gives 10250000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 249980 + ... + 250020.

Almost surely, 2^10250000 is an apocalyptic number.

10250000 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 10250000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12714681).

10250000 is an abundant number, since it is smaller than the sum of its proper divisors (15179362).

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

10250000 is an frugal number, since it uses more digits than its factorization.

10250000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79 (or 48 counting only the distinct ones).

The product of its (nonzero) digits is 10, while the sum is 8.

The square root of 10250000 is about 3201.5621187164. The cubic root of 10250000 is about 217.2240742884.

Adding to 10250000 its reverse (5201), we get a palindrome (10255201).

The spelling of 10250000 in words is "ten million, two hundred fifty thousand".