2530723 has 4 divisors (see below), whose sum is σ = 2725408. Its totient is φ = 2336040.

The previous prime is 2530709. The next prime is 2530727. The reversal of 2530723 is 3270352.

It is a happy number.

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 2530723 - 2²¹ = 433571 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2530694 and 2530703.

It is not an unprimeable number, because it can be changed into a prime (2530727) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 97323 + ... + 97348.

It is an arithmetic number, because the mean of its divisors is an integer number (681352).

2^2530723 is an apocalyptic number.

2530723 is a deficient number, since it is larger than the sum of its proper divisors (194685).

2530723 is a wasteful number, since it uses less digits than its factorization.

2530723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194684.

The product of its (nonzero) digits is 1260, while the sum is 22.

The square root of 2530723 is about 1590.8246289268. The cubic root of 2530723 is about 136.2745858054.

The spelling of 2530723 in words is "two million, five hundred thirty thousand, seven hundred twenty-three".