125603498477 has 2 divisors, whose sum is σ = 125603498478. Its totient is φ = 125603498476.

The previous prime is 125603498453. The next prime is 125603498521. The reversal of 125603498477 is 774894306521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 96849174436 + 28754324041 = 311206^2 + 169571^2 .

It is a cyclic number.

It is not a de Polignac number, because 125603498477 - 2¹² = 125603494381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125603498077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62801749238 + 62801749239.

It is an arithmetic number, because the mean of its divisors is an integer number (62801749239).

It is a 1-persistent number, because it is pandigital, but 2⋅125603498477 = 251206996954 is not.

Almost surely, 2^125603498477 is an apocalyptic number.

It is an amenable number.

125603498477 is a deficient number, since it is larger than the sum of its proper divisors (1).

125603498477 is an equidigital number, since it uses as much as digits as its factorization.

125603498477 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10160640, while the sum is 56.

The spelling of 125603498477 in words is "one hundred twenty-five billion, six hundred three million, four hundred ninety-eight thousand, four hundred seventy-seven".