725845294476061 has 2 divisors, whose sum is σ = 725845294476062. Its totient is φ = 725845294476060.

The previous prime is 725845294475993. The next prime is 725845294476083. The reversal of 725845294476061 is 160674492548527.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 504281771775961 + 221563522700100 = 22456219^2 + 14885010^2 .

It is a cyclic number.

It is not a de Polignac number, because 725845294476061 - 2³⁷ = 725707855522589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (725845292476061) 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, 362922647238030 + 362922647238031.

It is an arithmetic number, because the mean of its divisors is an integer number (362922647238031).

Almost surely, 2^{725845294476061} is an apocalyptic number.

It is an amenable number.

725845294476061 is a deficient number, since it is larger than the sum of its proper divisors (1).

725845294476061 is an equidigital number, since it uses as much as digits as its factorization.

725845294476061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 812851200, while the sum is 70.

The spelling of 725845294476061 in words is "seven hundred twenty-five trillion, eight hundred forty-five billion, two hundred ninety-four million, four hundred seventy-six thousand, sixty-one".