2530723549 has 4 divisors (see below), whose sum is σ = 2540346336. Its totient is φ = 2521100764.

The previous prime is 2530723543. The next prime is 2530723561. The reversal of 2530723549 is 9453270352.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2530723549 - 2⁷ = 2530723421 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2530723543) 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, 4810999 + ... + 4811524.

It is an arithmetic number, because the mean of its divisors is an integer number (635086584).

Almost surely, 2^2530723549 is an apocalyptic number.

It is an amenable number.

2530723549 is a deficient number, since it is larger than the sum of its proper divisors (9622787).

2530723549 is an equidigital number, since it uses as much as digits as its factorization.

2530723549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9622786.

The product of its (nonzero) digits is 226800, while the sum is 40.

The square root of 2530723549 is about 50306.2973095814. The cubic root of 2530723549 is about 1362.7459565964.

The spelling of 2530723549 in words is "two billion, five hundred thirty million, seven hundred twenty-three thousand, five hundred forty-nine".