125725467737 has 2 divisors, whose sum is σ = 125725467738. Its totient is φ = 125725467736.

The previous prime is 125725467683. The next prime is 125725467779. The reversal of 125725467737 is 737764527521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 125701447936 + 24019801 = 354544^2 + 4901^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125725467737 is a prime.

It is not a weakly prime, because it can be changed into another prime (125725467787) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62862733868 + 62862733869.

It is an arithmetic number, because the mean of its divisors is an integer number (62862733869).

Almost surely, 2^125725467737 is an apocalyptic number.

It is an amenable number.

125725467737 is a deficient number, since it is larger than the sum of its proper divisors (1).

125725467737 is an equidigital number, since it uses as much as digits as its factorization.

125725467737 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17287200, while the sum is 56.

The spelling of 125725467737 in words is "one hundred twenty-five billion, seven hundred twenty-five million, four hundred sixty-seven thousand, seven hundred thirty-seven".