125604511057 has 2 divisors, whose sum is σ = 125604511058. Its totient is φ = 125604511056.

The previous prime is 125604511037. The next prime is 125604511103. The reversal of 125604511057 is 750115406521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 68541334416 + 57063176641 = 261804^2 + 238879^2 .

It is a cyclic number.

It is not a de Polignac number, because 125604511057 - 2⁷ = 125604510929 is a prime.

It is not a weakly prime, because it can be changed into another prime (125604511027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62802255528 + 62802255529.

It is an arithmetic number, because the mean of its divisors is an integer number (62802255529).

Almost surely, 2^125604511057 is an apocalyptic number.

It is an amenable number.

125604511057 is a deficient number, since it is larger than the sum of its proper divisors (1).

125604511057 is an equidigital number, since it uses as much as digits as its factorization.

125604511057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 42000, while the sum is 37.

Adding to 125604511057 its reverse (750115406521), we get a palindrome (875719917578).

The spelling of 125604511057 in words is "one hundred twenty-five billion, six hundred four million, five hundred eleven thousand, fifty-seven".