125530522989 has 16 divisors (see below), whose sum is σ = 176208199680. Its totient is φ = 79271181360.

The previous prime is 125530522963. The next prime is 125530523003. The reversal of 125530522989 is 989225035521.

It is not a de Polignac number, because 125530522989 - 2⁷ = 125530522861 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125530522589) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 258324 + ... + 563730.

It is an arithmetic number, because the mean of its divisors is an integer number (11013012480).

Almost surely, 2^125530522989 is an apocalyptic number.

125530522989 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

125530522989 is a deficient number, since it is larger than the sum of its proper divisors (50677676691).

125530522989 is a wasteful number, since it uses less digits than its factorization.

125530522989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312640.

The product of its (nonzero) digits is 1944000, while the sum is 51.

The spelling of 125530522989 in words is "one hundred twenty-five billion, five hundred thirty million, five hundred twenty-two thousand, nine hundred eighty-nine".