2523731 has 8 divisors (see below), whose sum is σ = 2895360. Its totient is φ = 2154888.

The previous prime is 2523727. The next prime is 2523739. The reversal of 2523731 is 1373252.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2523731 - 2² = 2523727 is a prime.

It is a super-4 number, since 4×2523731⁴ (a number of 27 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2523697 and 2523706.

It is not an unprimeable number, because it can be changed into a prime (2523739) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1910 + ... + 2948.

It is an arithmetic number, because the mean of its divisors is an integer number (361920).

2^2523731 is an apocalyptic number.

2523731 is a deficient number, since it is larger than the sum of its proper divisors (371629).

2523731 is a wasteful number, since it uses less digits than its factorization.

2523731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1393.

The product of its digits is 1260, while the sum is 23.

The square root of 2523731 is about 1588.6255065307. The cubic root of 2523731 is about 136.1489681114.

Adding to 2523731 its reverse (1373252), we get a palindrome (3896983).

The spelling of 2523731 in words is "two million, five hundred twenty-three thousand, seven hundred thirty-one".