2521673723 has 2 divisors, whose sum is σ = 2521673724. Its totient is φ = 2521673722.

The previous prime is 2521673683. The next prime is 2521673753. The reversal of 2521673723 is 3273761252.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2521673723 - 2²⁶ = 2454564859 is a prime.

It is not a weakly prime, because it can be changed into another prime (2521673753) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1260836861 + 1260836862.

It is an arithmetic number, because the mean of its divisors is an integer number (1260836862).

Almost surely, 2^2521673723 is an apocalyptic number.

2521673723 is a deficient number, since it is larger than the sum of its proper divisors (1).

2521673723 is an equidigital number, since it uses as much as digits as its factorization.

2521673723 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 105840, while the sum is 38.

The square root of 2521673723 is about 50216.2695050120. The cubic root of 2521673723 is about 1361.1196307343.

The spelling of 2521673723 in words is "two billion, five hundred twenty-one million, six hundred seventy-three thousand, seven hundred twenty-three".