1025162250 has 128 divisors (see below), whose sum is σ = 3019161600. Its totient is φ = 226728000.

The previous prime is 1025162213. The next prime is 1025162273. The reversal of 1025162250 is 522615201.

It is a happy number.

1025162250 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 1025162250.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 159601 + ... + 165899.

It is an arithmetic number, because the mean of its divisors is an integer number (23587200).

Almost surely, 2^1025162250 is an apocalyptic number.

1025162250 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 1025162250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1509580800).

1025162250 is an abundant number, since it is smaller than the sum of its proper divisors (1993999350).

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

1025162250 is a wasteful number, since it uses less digits than its factorization.

1025162250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6357 (or 6347 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 1025162250 is about 32018.1550061836. The cubic root of 1025162250 is about 1008.3180351176.

Adding to 1025162250 its reverse (522615201), we get a palindrome (1547777451).

The spelling of 1025162250 in words is "one billion, twenty-five million, one hundred sixty-two thousand, two hundred fifty".