125557763 has 2 divisors, whose sum is σ = 125557764. Its totient is φ = 125557762.

The previous prime is 125557693. The next prime is 125557771. The reversal of 125557763 is 367755521.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 125557763 - 2⁸ = 125557507 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 125557763.

It is not a weakly prime, because it can be changed into another prime (125557793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62778881 + 62778882.

It is an arithmetic number, because the mean of its divisors is an integer number (62778882).

Almost surely, 2^125557763 is an apocalyptic number.

125557763 is a deficient number, since it is larger than the sum of its proper divisors (1).

125557763 is an equidigital number, since it uses as much as digits as its factorization.

125557763 is an evil number, because the sum of its binary digits is even.

The product of its digits is 220500, while the sum is 41.

The square root of 125557763 is about 11205.2560434825. The cubic root of 125557763 is about 500.7425806021.

The spelling of 125557763 in words is "one hundred twenty-five million, five hundred fifty-seven thousand, seven hundred sixty-three".