725322427 has 2 divisors, whose sum is σ = 725322428. Its totient is φ = 725322426.

The previous prime is 725322421. The next prime is 725322443. The reversal of 725322427 is 724223527.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-725322427 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 725322392 and 725322401.

It is not a weakly prime, because it can be changed into another prime (725322421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 362661213 + 362661214.

It is an arithmetic number, because the mean of its divisors is an integer number (362661214).

Almost surely, 2^725322427 is an apocalyptic number.

725322427 is a deficient number, since it is larger than the sum of its proper divisors (1).

725322427 is an equidigital number, since it uses as much as digits as its factorization.

725322427 is an evil number, because the sum of its binary digits is even.

The product of its digits is 47040, while the sum is 34.

The square root of 725322427 is about 26931.8106892203. The cubic root of 725322427 is about 898.4840434355.

The spelling of 725322427 in words is "seven hundred twenty-five million, three hundred twenty-two thousand, four hundred twenty-seven".