725277337 has 2 divisors, whose sum is σ = 725277338. Its totient is φ = 725277336.

The previous prime is 725277313. The next prime is 725277347. The reversal of 725277337 is 733772527.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 704583936 + 20693401 = 26544^2 + 4549^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-725277337 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 725277293 and 725277302.

It is not a weakly prime, because it can be changed into another prime (725277347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 362638668 + 362638669.

It is an arithmetic number, because the mean of its divisors is an integer number (362638669).

Almost surely, 2^725277337 is an apocalyptic number.

It is an amenable number.

725277337 is a deficient number, since it is larger than the sum of its proper divisors (1).

725277337 is an equidigital number, since it uses as much as digits as its factorization.

725277337 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 432180, while the sum is 43.

The square root of 725277337 is about 26930.9735620530. The cubic root of 725277337 is about 898.4654248260.

The spelling of 725277337 in words is "seven hundred twenty-five million, two hundred seventy-seven thousand, three hundred thirty-seven".