125025555 has 16 divisors (see below), whose sum is σ = 200242080. Its totient is φ = 66613248.

The previous prime is 125025547. The next prime is 125025559. The reversal of 125025555 is 555520521.

It is not a de Polignac number, because 125025555 - 2³ = 125025547 is a prime.

It is not an unprimeable number, because it can be changed into a prime (125025559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13681 + ... + 20909.

It is an arithmetic number, because the mean of its divisors is an integer number (12515130).

Almost surely, 2^125025555 is an apocalyptic number.

125025555 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

125025555 is a deficient number, since it is larger than the sum of its proper divisors (75216525).

125025555 is a wasteful number, since it uses less digits than its factorization.

125025555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8390.

The product of its (nonzero) digits is 12500, while the sum is 30.

The square root of 125025555 is about 11181.4826834369. The cubic root of 125025555 is about 500.0340710116.

The spelling of 125025555 in words is "one hundred twenty-five million, twenty-five thousand, five hundred fifty-five".