125060561 has 4 divisors (see below), whose sum is σ = 127721472. Its totient is φ = 122399652.

The previous prime is 125060513. The next prime is 125060567. The reversal of 125060561 is 165060521.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 165060521 = 6959 ⋅23719.

It is a cyclic number.

It is not a de Polignac number, because 125060561 - 2¹⁰ = 125059537 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 125060561.

It is not an unprimeable number, because it can be changed into a prime (125060567) 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, 1330385 + ... + 1330478.

It is an arithmetic number, because the mean of its divisors is an integer number (31930368).

Almost surely, 2^125060561 is an apocalyptic number.

It is an amenable number.

125060561 is a deficient number, since it is larger than the sum of its proper divisors (2660911).

125060561 is an equidigital number, since it uses as much as digits as its factorization.

125060561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2660910.

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 125060561 is about 11183.0479297909. The cubic root of 125060561 is about 500.0807349630.

The spelling of 125060561 in words is "one hundred twenty-five million, sixty thousand, five hundred sixty-one".