125625031005 has 16 divisors (see below), whose sum is σ = 207483922944. Its totient is φ = 64838725440.

The previous prime is 125625030977. The next prime is 125625031031. The reversal of 125625031005 is 500130526521.

It is a happy number.

It is not a de Polignac number, because 125625031005 - 2¹² = 125625026909 is a prime.

It is a super-2 number, since 2×125625031005² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 135080214 + ... + 135081143.

It is an arithmetic number, because the mean of its divisors is an integer number (12967745184).

Almost surely, 2^125625031005 is an apocalyptic number.

125625031005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

125625031005 is a deficient number, since it is larger than the sum of its proper divisors (81858891939).

125625031005 is a wasteful number, since it uses less digits than its factorization.

125625031005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270161396.

The product of its (nonzero) digits is 9000, while the sum is 30.

Adding to 125625031005 its reverse (500130526521), we get a palindrome (625755557526).

The spelling of 125625031005 in words is "one hundred twenty-five billion, six hundred twenty-five million, thirty-one thousand, five".