825323081 has 4 divisors (see below), whose sum is σ = 900352464. Its totient is φ = 750293700.

The previous prime is 825323063. The next prime is 825323087. The reversal of 825323081 is 180323528.

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.

It is a cyclic number.

It is not a de Polignac number, because 825323081 - 2¹⁸ = 825060937 is a prime.

It is a super-2 number, since 2×825323081² = 1362316376062665122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (825323087) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37514675 + ... + 37514696.

It is an arithmetic number, because the mean of its divisors is an integer number (225088116).

Almost surely, 2^825323081 is an apocalyptic number.

It is an amenable number.

825323081 is a deficient number, since it is larger than the sum of its proper divisors (75029383).

825323081 is a wasteful number, since it uses less digits than its factorization.

825323081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75029382.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 825323081 is about 28728.4368004944. The cubic root of 825323081 is about 938.0111416155.

The spelling of 825323081 in words is "eight hundred twenty-five million, three hundred twenty-three thousand, eighty-one".