2825531 has 4 divisors (see below), whose sum is σ = 2830512. Its totient is φ = 2820552.

The previous prime is 2825521. The next prime is 2825551. The reversal of 2825531 is 1355282.

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

It is a cyclic number.

It is not a de Polignac number, because 2825531 - 2⁶ = 2825467 is a prime.

It is a super-2 number, since 2×2825531² = 15967250863922, which contains 22 as substring.

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 2825531.

It is not an unprimeable number, because it can be changed into a prime (2825521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1511 + ... + 2816.

It is an arithmetic number, because the mean of its divisors is an integer number (707628).

2^2825531 is an apocalyptic number.

2825531 is a deficient number, since it is larger than the sum of its proper divisors (4981).

2825531 is an equidigital number, since it uses as much as digits as its factorization.

2825531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4980.

The product of its digits is 2400, while the sum is 26.

The square root of 2825531 is about 1680.9315869481. The cubic root of 2825531 is about 141.3730710075.

The spelling of 2825531 in words is "two million, eight hundred twenty-five thousand, five hundred thirty-one".