725057 has 2 divisors, whose sum is σ = 725058. Its totient is φ = 725056.

The previous prime is 725041. The next prime is 725071. The reversal of 725057 is 750527.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 495616 + 229441 = 704^2 + 479^2 .

It is a cyclic number.

It is not a de Polignac number, because 725057 - 2⁴ = 725041 is a prime.

It is not a weakly prime, because it can be changed into another prime (725077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 362528 + 362529.

It is an arithmetic number, because the mean of its divisors is an integer number (362529).

2⁷²⁵⁰⁵⁷ is an apocalyptic number.

It is an amenable number.

725057 is a deficient number, since it is larger than the sum of its proper divisors (1).

725057 is an equidigital number, since it uses as much as digits as its factorization.

725057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2450, while the sum is 26.

The square root of 725057 is about 851.5027891910. The cubic root of 725057 is about 89.8374431943.

The spelling of 725057 in words is "seven hundred twenty-five thousand, fifty-seven".