125906272555 has 32 divisors (see below), whose sum is σ = 175751786880. Its totient is φ = 84799595520.

The previous prime is 125906272501. The next prime is 125906272567. The reversal of 125906272555 is 555272609521.

It is not a de Polignac number, because 125906272555 - 2¹⁵ = 125906239787 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 125906272499 and 125906272508.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1472127 + ... + 1555303.

It is an arithmetic number, because the mean of its divisors is an integer number (5492243340).

Almost surely, 2^125906272555 is an apocalyptic number.

125906272555 is a deficient number, since it is larger than the sum of its proper divisors (49845514325).

125906272555 is an equidigital number, since it uses as much as digits as its factorization.

125906272555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83959.

The product of its (nonzero) digits is 1890000, while the sum is 49.

The spelling of 125906272555 in words is "one hundred twenty-five billion, nine hundred six million, two hundred seventy-two thousand, five hundred fifty-five".