125504603 has 4 divisors (see below), whose sum is σ = 143433840. Its totient is φ = 107575368.

The previous prime is 125504569. The next prime is 125504609. The reversal of 125504603 is 306405521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 306405521 = 107 ⋅2863603.

It is a cyclic number.

It is not a de Polignac number, because 125504603 - 2⁸ = 125504347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125504609) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8964608 + ... + 8964621.

It is an arithmetic number, because the mean of its divisors is an integer number (35858460).

Almost surely, 2^125504603 is an apocalyptic number.

125504603 is a deficient number, since it is larger than the sum of its proper divisors (17929237).

125504603 is an equidigital number, since it uses as much as digits as its factorization.

125504603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17929236.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 125504603 is about 11202.8836912645. The cubic root of 125504603 is about 500.6719006945.

The spelling of 125504603 in words is "one hundred twenty-five million, five hundred four thousand, six hundred three".