825028445 has 16 divisors (see below), whose sum is σ = 1073843568. Its totient is φ = 606044160.

The previous prime is 825028441. The next prime is 825028471. The reversal of 825028445 is 544820528.

It can be written as a sum of positive squares in 8 ways, for example, as 44328964 + 780699481 = 6658^2 + 27941^2 .

It is not a de Polignac number, because 825028445 - 2² = 825028441 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 825028399 and 825028408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (825028441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 114884 + ... + 121853.

It is an arithmetic number, because the mean of its divisors is an integer number (67115223).

Almost surely, 2^825028445 is an apocalyptic number.

825028445 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

825028445 is a deficient number, since it is larger than the sum of its proper divisors (248815123).

825028445 is a wasteful number, since it uses less digits than its factorization.

825028445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236800.

The product of its (nonzero) digits is 102400, while the sum is 38.

The square root of 825028445 is about 28723.3083923144. The cubic root of 825028445 is about 937.8995066484.

The spelling of 825028445 in words is "eight hundred twenty-five million, twenty-eight thousand, four hundred forty-five".