2025731 has 4 divisors (see below), whose sum is σ = 2028600. Its totient is φ = 2022864.

The previous prime is 2025721. The next prime is 2025733. The reversal of 2025731 is 1375202.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2025731 is a prime.

It is a super-2 number, since 2×2025731² = 8207172168722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2025733) 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 3 ways as a sum of consecutive naturals, for example, 455 + ... + 2063.

It is an arithmetic number, because the mean of its divisors is an integer number (507150).

2^2025731 is an apocalyptic number.

2025731 is a deficient number, since it is larger than the sum of its proper divisors (2869).

2025731 is a wasteful number, since it uses less digits than its factorization.

2025731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2868.

The product of its (nonzero) digits is 420, while the sum is 20.

The square root of 2025731 is about 1423.2817711191. The cubic root of 2025731 is about 126.5301214028.

The spelling of 2025731 in words is "two million, twenty-five thousand, seven hundred thirty-one".