825264653 has 4 divisors (see below), whose sum is σ = 825323520. Its totient is φ = 825205788.

The previous prime is 825264641. The next prime is 825264673. The reversal of 825264653 is 356462528.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 825264653 - 2⁶ = 825264589 is a prime.

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 825264653.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (825264673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5108 + ... + 40946.

It is an arithmetic number, because the mean of its divisors is an integer number (206330880).

Almost surely, 2^825264653 is an apocalyptic number.

It is an amenable number.

825264653 is a deficient number, since it is larger than the sum of its proper divisors (58867).

825264653 is a wasteful number, since it uses less digits than its factorization.

825264653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58866.

The product of its digits is 345600, while the sum is 41.

The square root of 825264653 is about 28727.4198806645. The cubic root of 825264653 is about 937.9890058768.

The spelling of 825264653 in words is "eight hundred twenty-five million, two hundred sixty-four thousand, six hundred fifty-three".