725344104157 has 2 divisors, whose sum is σ = 725344104158. Its totient is φ = 725344104156.

The previous prime is 725344104143. The next prime is 725344104167. The reversal of 725344104157 is 751401443527.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 616278381156 + 109065723001 = 785034^2 + 330251^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-725344104157 is a prime.

It is a super-2 number, since 2×725344104157² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (725344104167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 362672052078 + 362672052079.

It is an arithmetic number, because the mean of its divisors is an integer number (362672052079).

Almost surely, 2^725344104157 is an apocalyptic number.

It is an amenable number.

725344104157 is a deficient number, since it is larger than the sum of its proper divisors (1).

725344104157 is an equidigital number, since it uses as much as digits as its factorization.

725344104157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 470400, while the sum is 43.

The spelling of 725344104157 in words is "seven hundred twenty-five billion, three hundred forty-four million, one hundred four thousand, one hundred fifty-seven".