125056503 has 24 divisors (see below), whose sum is σ = 212219280. Its totient is φ = 69960960.

The previous prime is 125056487. The next prime is 125056507. The reversal of 125056503 is 305650521.

125056503 is a `hidden beast` number, since 1 + 2 + 5 + 0 + 5 + 650 + 3 = 666.

It is not a de Polignac number, because 125056503 - 2⁴ = 125056487 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125056507) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 47298 + ... + 49871.

It is an arithmetic number, because the mean of its divisors is an integer number (8842470).

Almost surely, 2^125056503 is an apocalyptic number.

125056503 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

125056503 is a deficient number, since it is larger than the sum of its proper divisors (87162777).

125056503 is a wasteful number, since it uses less digits than its factorization.

125056503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97199 (or 97196 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 27.

The square root of 125056503 is about 11182.8664929883. The cubic root of 125056503 is about 500.0753259848.

The spelling of 125056503 in words is "one hundred twenty-five million, fifty-six thousand, five hundred three".