725081087 has 2 divisors, whose sum is σ = 725081088. Its totient is φ = 725081086.

The previous prime is 725081081. The next prime is 725081099. The reversal of 725081087 is 780180527.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 725081087 - 2²² = 720886783 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 725081087.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (725081081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 362540543 + 362540544.

It is an arithmetic number, because the mean of its divisors is an integer number (362540544).

Almost surely, 2^725081087 is an apocalyptic number.

725081087 is a deficient number, since it is larger than the sum of its proper divisors (1).

725081087 is an equidigital number, since it uses as much as digits as its factorization.

725081087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31360, while the sum is 38.

The square root of 725081087 is about 26927.3297413613. The cubic root of 725081087 is about 898.3843800833.

The spelling of 725081087 in words is "seven hundred twenty-five million, eighty-one thousand, eighty-seven".