125005005133 has 4 divisors (see below), whose sum is σ = 125989296640. Its totient is φ = 124020713628.

The previous prime is 125005005113. The next prime is 125005005157. The reversal of 125005005133 is 331500500521.

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: 331500500521 = 137339 ⋅2413739.

It is a cyclic number.

It is not a de Polignac number, because 125005005133 - 2²⁹ = 124468134221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 125005005098 and 125005005107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125005005113) 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, 492145563 + ... + 492145816.

It is an arithmetic number, because the mean of its divisors is an integer number (31497324160).

Almost surely, 2^125005005133 is an apocalyptic number.

It is an amenable number.

125005005133 is a deficient number, since it is larger than the sum of its proper divisors (984291507).

125005005133 is an equidigital number, since it uses as much as digits as its factorization.

125005005133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 984291506.

The product of its (nonzero) digits is 2250, while the sum is 25.

Adding to 125005005133 its reverse (331500500521), we get a palindrome (456505505654).

The spelling of 125005005133 in words is "one hundred twenty-five billion, five million, five thousand, one hundred thirty-three".