125777503 has 2 divisors, whose sum is σ = 125777504. Its totient is φ = 125777502.

The previous prime is 125777497. The next prime is 125777507. The reversal of 125777503 is 305777521.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125777503 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125777507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62888751 + 62888752.

It is an arithmetic number, because the mean of its divisors is an integer number (62888752).

Almost surely, 2^125777503 is an apocalyptic number.

125777503 is a deficient number, since it is larger than the sum of its proper divisors (1).

125777503 is an equidigital number, since it uses as much as digits as its factorization.

125777503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51450, while the sum is 37.

The square root of 125777503 is about 11215.0569771179. The cubic root of 125777503 is about 501.0345286912.

The spelling of 125777503 in words is "one hundred twenty-five million, seven hundred seventy-seven thousand, five hundred three".