725507047 has 2 divisors, whose sum is σ = 725507048. Its totient is φ = 725507046.

The previous prime is 725507023. The next prime is 725507053. The reversal of 725507047 is 740705527.

It is a strong prime.

It is an emirp because it is prime and its reverse (740705527) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 725507047 - 2¹⁹ = 724982759 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 725506997 and 725507015.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (725507017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 362753523 + 362753524.

It is an arithmetic number, because the mean of its divisors is an integer number (362753524).

Almost surely, 2^725507047 is an apocalyptic number.

725507047 is a deficient number, since it is larger than the sum of its proper divisors (1).

725507047 is an equidigital number, since it uses as much as digits as its factorization.

725507047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 68600, while the sum is 37.

The square root of 725507047 is about 26935.2380163978. The cubic root of 725507047 is about 898.5602688703.

It can be divided in two parts, 72550 and 7047, that added together give a palindrome (79597).

The spelling of 725507047 in words is "seven hundred twenty-five million, five hundred seven thousand, forty-seven".