802825505 has 4 divisors (see below), whose sum is σ = 963390612. Its totient is φ = 642260400.

The previous prime is 802825489. The next prime is 802825537. The reversal of 802825505 is 505528208.

802825505 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 218684944 + 584140561 = 14788^2 + 24169^2 .

It is not a de Polignac number, because 802825505 - 2⁴ = 802825489 is a prime.

It is a Duffinian number.

It is a Curzon number.

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, 80282546 + ... + 80282555.

It is an arithmetic number, because the mean of its divisors is an integer number (240847653).

Almost surely, 2^802825505 is an apocalyptic number.

It is an amenable number.

802825505 is a deficient number, since it is larger than the sum of its proper divisors (160565107).

802825505 is a wasteful number, since it uses less digits than its factorization.

802825505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160565106.

The product of its (nonzero) digits is 32000, while the sum is 35.

The square root of 802825505 is about 28334.1755659133. The cubic root of 802825505 is about 929.4093852785.

It can be divided in two parts, 8028 and 25505, that added together give a palindrome (33533).

The spelling of 802825505 in words is "eight hundred two million, eight hundred twenty-five thousand, five hundred five".