725556047 has 2 divisors, whose sum is σ = 725556048. Its totient is φ = 725556046.

The previous prime is 725556019. The next prime is 725556053. The reversal of 725556047 is 740655527.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 725556047 - 2¹⁴ = 725539663 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 725555995 and 725556013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (725556077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 362778023 + 362778024.

It is an arithmetic number, because the mean of its divisors is an integer number (362778024).

Almost surely, 2^725556047 is an apocalyptic number.

725556047 is a deficient number, since it is larger than the sum of its proper divisors (1).

725556047 is an equidigital number, since it uses as much as digits as its factorization.

725556047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 294000, while the sum is 41.

The square root of 725556047 is about 26936.1475901807. The cubic root of 725556047 is about 898.5804976938.

The spelling of 725556047 in words is "seven hundred twenty-five million, five hundred fifty-six thousand, forty-seven".