825020125 has 8 divisors (see below), whose sum is σ = 1029625272. Its totient is φ = 660016000.

The previous prime is 825020123. The next prime is 825020167. The reversal of 825020125 is 521020528.

It can be written as a sum of positive squares in 4 ways, for example, as 24186724 + 800833401 = 4918^2 + 28299^2 .

It is not a de Polignac number, because 825020125 - 2¹ = 825020123 is a prime.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 825020125.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (825020123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3299956 + ... + 3300205.

It is an arithmetic number, because the mean of its divisors is an integer number (128703159).

Almost surely, 2^825020125 is an apocalyptic number.

It is an amenable number.

825020125 is a deficient number, since it is larger than the sum of its proper divisors (204605147).

825020125 is an equidigital number, since it uses as much as digits as its factorization.

825020125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6600176 (or 6600166 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 25.

The square root of 825020125 is about 28723.1635618363. The cubic root of 825020125 is about 937.8963538884.

The spelling of 825020125 in words is "eight hundred twenty-five million, twenty thousand, one hundred twenty-five".