2531825 has 6 divisors (see below), whose sum is σ = 3139494. Its totient is φ = 2025440.

The previous prime is 2531821. The next prime is 2531831. The reversal of 2531825 is 5281352.

2531825 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 703921 + 1827904 = 839^2 + 1352^2 .

It is not a de Polignac number, because 2531825 - 2² = 2531821 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2531794 and 2531803.

It is not an unprimeable number, because it can be changed into a prime (2531821) 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 5 ways as a sum of consecutive naturals, for example, 50612 + ... + 50661.

It is an arithmetic number, because the mean of its divisors is an integer number (523249).

2^2531825 is an apocalyptic number.

2531825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2531825 is a deficient number, since it is larger than the sum of its proper divisors (607669).

2531825 is a wasteful number, since it uses less digits than its factorization.

2531825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101283 (or 101278 counting only the distinct ones).

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

The square root of 2531825 is about 1591.1709524749. The cubic root of 2531825 is about 136.2943631314.

The spelling of 2531825 in words is "two million, five hundred thirty-one thousand, eight hundred twenty-five".