725053123 has 2 divisors, whose sum is σ = 725053124. Its totient is φ = 725053122.

The previous prime is 725053097. The next prime is 725053187. The reversal of 725053123 is 321350527.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 725053123 - 2²¹ = 722955971 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 725053091 and 725053100.

It is not a weakly prime, because it can be changed into another prime (725053193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 362526561 + 362526562.

It is an arithmetic number, because the mean of its divisors is an integer number (362526562).

Almost surely, 2^725053123 is an apocalyptic number.

725053123 is a deficient number, since it is larger than the sum of its proper divisors (1).

725053123 is an equidigital number, since it uses as much as digits as its factorization.

725053123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6300, while the sum is 28.

The square root of 725053123 is about 26926.8104869478. The cubic root of 725053123 is about 898.3728306882.

The spelling of 725053123 in words is "seven hundred twenty-five million, fifty-three thousand, one hundred twenty-three".