825303506 has 4 divisors (see below), whose sum is σ = 1237955262. Its totient is φ = 412651752.

The previous prime is 825303491. The next prime is 825303509. The reversal of 825303506 is 605303528.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 603144481 + 222159025 = 24559^2 + 14905^2 .

It is a super-2 number, since 2×825303506² = 1362251754031784072, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (825303509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 206325875 + ... + 206325878.

Almost surely, 2^825303506 is an apocalyptic number.

825303506 is a deficient number, since it is larger than the sum of its proper divisors (412651756).

825303506 is a wasteful number, since it uses less digits than its factorization.

825303506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 412651755.

The product of its (nonzero) digits is 21600, while the sum is 32.

The square root of 825303506 is about 28728.0961081656. The cubic root of 825303506 is about 938.0037256457.

The spelling of 825303506 in words is "eight hundred twenty-five million, three hundred three thousand, five hundred six".