725404049 has 2 divisors, whose sum is σ = 725404050. Its totient is φ = 725404048.

The previous prime is 725404037. The next prime is 725404067. The reversal of 725404049 is 940404527.

725404049 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 589518400 + 135885649 = 24280^2 + 11657^2 .

It is a cyclic number.

It is not a de Polignac number, because 725404049 - 2²⁸ = 456968593 is a prime.

It is a super-2 number, since 2×725404049² = 1052422068611188802, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (725404019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 362702024 + 362702025.

It is an arithmetic number, because the mean of its divisors is an integer number (362702025).

Almost surely, 2^725404049 is an apocalyptic number.

It is an amenable number.

725404049 is a deficient number, since it is larger than the sum of its proper divisors (1).

725404049 is an equidigital number, since it uses as much as digits as its factorization.

725404049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40320, while the sum is 35.

The square root of 725404049 is about 26933.3259921607. The cubic root of 725404049 is about 898.5177449137.

The spelling of 725404049 in words is "seven hundred twenty-five million, four hundred four thousand, forty-nine".