650528 has 24 divisors (see below), whose sum is σ = 1326780. Its totient is φ = 313600.

The previous prime is 650519. The next prime is 650537. The reversal of 650528 is 825056.

It is an interprime number because it is at equal distance from previous prime (650519) and next prime (650537).

It can be written as a sum of positive squares in 2 ways, for example, as 620944 + 29584 = 788^2 + 172^2 .

It is a junction number, because it is equal to n+sod(n) for n = 650497 and 650506.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 650528.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 578 + ... + 1278.

2⁶⁵⁰⁵²⁸ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 650528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (663390).

650528 is an abundant number, since it is smaller than the sum of its proper divisors (676252).

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

650528 is a wasteful number, since it uses less digits than its factorization.

650528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 740 (or 732 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 650528 is about 806.5531600583. The cubic root of 650528 is about 86.6473592757.

The spelling of 650528 in words is "six hundred fifty thousand, five hundred twenty-eight".