3725467561 has 2 divisors, whose sum is σ = 3725467562. Its totient is φ = 3725467560.

The previous prime is 3725467553. The next prime is 3725467597. The reversal of 3725467561 is 1657645273.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3664001961 + 61465600 = 60531^2 + 7840^2 .

It is a cyclic number.

It is not a de Polignac number, because 3725467561 - 2³ = 3725467553 is a prime.

It is not a weakly prime, because it can be changed into another prime (3725467511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1862733780 + 1862733781.

It is an arithmetic number, because the mean of its divisors is an integer number (1862733781).

Almost surely, 2^3725467561 is an apocalyptic number.

It is an amenable number.

3725467561 is a deficient number, since it is larger than the sum of its proper divisors (1).

3725467561 is an equidigital number, since it uses as much as digits as its factorization.

3725467561 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1058400, while the sum is 46.

The square root of 3725467561 is about 61036.6083674380. The cubic root of 3725467561 is about 1550.2209273712.

The spelling of 3725467561 in words is "three billion, seven hundred twenty-five million, four hundred sixty-seven thousand, five hundred sixty-one".