825479541 has 12 divisors (see below), whose sum is σ = 1193295532. Its totient is φ = 549887616.

The previous prime is 825479533. The next prime is 825479549. The reversal of 825479541 is 145974528.

It is an interprime number because it is at equal distance from previous prime (825479533) and next prime (825479549).

It can be written as a sum of positive squares in 2 ways, for example, as 689850225 + 135629316 = 26265^2 + 11646^2 .

It is not a de Polignac number, because 825479541 - 2³ = 825479533 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (825479549) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23686 + ... + 47031.

Almost surely, 2^825479541 is an apocalyptic number.

It is an amenable number.

825479541 is a deficient number, since it is larger than the sum of its proper divisors (367815991).

825479541 is a wasteful number, since it uses less digits than its factorization.

825479541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72020 (or 72017 counting only the distinct ones).

The product of its digits is 403200, while the sum is 45.

The square root of 825479541 is about 28731.1597573088. The cubic root of 825479541 is about 938.0704121216.

The spelling of 825479541 in words is "eight hundred twenty-five million, four hundred seventy-nine thousand, five hundred forty-one".