125560551673 has 4 divisors (see below), whose sum is σ = 127073329488. Its totient is φ = 124047773860.

The previous prime is 125560551667. The next prime is 125560551707. The reversal of 125560551673 is 376155065521.

It is a happy number.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125560551673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125560551373) 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, 756388783 + ... + 756388948.

It is an arithmetic number, because the mean of its divisors is an integer number (31768332372).

Almost surely, 2^125560551673 is an apocalyptic number.

It is an amenable number.

125560551673 is a deficient number, since it is larger than the sum of its proper divisors (1512777815).

125560551673 is an equidigital number, since it uses as much as digits as its factorization.

125560551673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1512777814.

The product of its (nonzero) digits is 945000, while the sum is 46.

The spelling of 125560551673 in words is "one hundred twenty-five billion, five hundred sixty million, five hundred fifty-one thousand, six hundred seventy-three".