726125501 has 2 divisors, whose sum is σ = 726125502. Its totient is φ = 726125500.

The previous prime is 726125467. The next prime is 726125509. The reversal of 726125501 is 105521627.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 725224900 + 900601 = 26930^2 + 949^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-726125501 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (726125509) 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, 363062750 + 363062751.

It is an arithmetic number, because the mean of its divisors is an integer number (363062751).

Almost surely, 2^726125501 is an apocalyptic number.

It is an amenable number.

726125501 is a deficient number, since it is larger than the sum of its proper divisors (1).

726125501 is an equidigital number, since it uses as much as digits as its factorization.

726125501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4200, while the sum is 29.

The square root of 726125501 is about 26946.7159594634. The cubic root of 726125501 is about 898.8155204048.

The spelling of 726125501 in words is "seven hundred twenty-six million, one hundred twenty-five thousand, five hundred one".