125010555205 has 32 divisors (see below), whose sum is σ = 155600040960. Its totient is φ = 96315709440.

The previous prime is 125010555199. The next prime is 125010555227. The reversal of 125010555205 is 502555010521.

It is not a de Polignac number, because 125010555205 - 2⁹ = 125010554693 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 42189054 + ... + 42192016.

It is an arithmetic number, because the mean of its divisors is an integer number (4862501280).

Almost surely, 2^125010555205 is an apocalyptic number.

It is an amenable number.

125010555205 is a deficient number, since it is larger than the sum of its proper divisors (30589485755).

125010555205 is a wasteful number, since it uses less digits than its factorization.

125010555205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4221.

The product of its (nonzero) digits is 12500, while the sum is 31.

Adding to 125010555205 its reverse (502555010521), we get a palindrome (627565565726).

The spelling of 125010555205 in words is "one hundred twenty-five billion, ten million, five hundred fifty-five thousand, two hundred five".