125404016753 has 4 divisors (see below), whose sum is σ = 129449307648. Its totient is φ = 121358725860.

The previous prime is 125404016729. The next prime is 125404016783. The reversal of 125404016753 is 357610404521.

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: 357610404521 = 149 ⋅2400069829.

It is a cyclic number.

It is not a de Polignac number, because 125404016753 - 2⁸ = 125404016497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125404016723) 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, 2022645401 + ... + 2022645462.

It is an arithmetic number, because the mean of its divisors is an integer number (32362326912).

Almost surely, 2^125404016753 is an apocalyptic number.

It is an amenable number.

125404016753 is a deficient number, since it is larger than the sum of its proper divisors (4045290895).

125404016753 is an equidigital number, since it uses as much as digits as its factorization.

125404016753 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4045290894.

The product of its (nonzero) digits is 100800, while the sum is 38.

The spelling of 125404016753 in words is "one hundred twenty-five billion, four hundred four million, sixteen thousand, seven hundred fifty-three".