125015503 has 2 divisors, whose sum is σ = 125015504. Its totient is φ = 125015502.

The previous prime is 125015447. The next prime is 125015537. The reversal of 125015503 is 305510521.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125015503 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125015203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62507751 + 62507752.

It is an arithmetic number, because the mean of its divisors is an integer number (62507752).

Almost surely, 2^125015503 is an apocalyptic number.

125015503 is a deficient number, since it is larger than the sum of its proper divisors (1).

125015503 is an equidigital number, since it uses as much as digits as its factorization.

125015503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 750, while the sum is 22.

The square root of 125015503 is about 11181.0331812405. The cubic root of 125015503 is about 500.0206698122.

The spelling of 125015503 in words is "one hundred twenty-five million, fifteen thousand, five hundred three".