3725549917 has 2 divisors, whose sum is σ = 3725549918. Its totient is φ = 3725549916.

The previous prime is 3725549897. The next prime is 3725549923. The reversal of 3725549917 is 7199455273.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3301766521 + 423783396 = 57461^2 + 20586^2 .

It is a cyclic number.

It is not a de Polignac number, because 3725549917 - 2¹¹ = 3725547869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3725549977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1862774958 + 1862774959.

It is an arithmetic number, because the mean of its divisors is an integer number (1862774959).

Almost surely, 2^3725549917 is an apocalyptic number.

It is an amenable number.

3725549917 is a deficient number, since it is larger than the sum of its proper divisors (1).

3725549917 is an equidigital number, since it uses as much as digits as its factorization.

3725549917 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2381400, while the sum is 52.

The square root of 3725549917 is about 61037.2830080108. The cubic root of 3725549917 is about 1550.2323504612.

The spelling of 3725549917 in words is "three billion, seven hundred twenty-five million, five hundred forty-nine thousand, nine hundred seventeen".