125428555 has 8 divisors (see below), whose sum is σ = 172016352. Its totient is φ = 86008128.

The previous prime is 125428547. The next prime is 125428561. The reversal of 125428555 is 555824521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 125428555 - 2³ = 125428547 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1791802 + ... + 1791871.

It is an arithmetic number, because the mean of its divisors is an integer number (21502044).

Almost surely, 2^125428555 is an apocalyptic number.

125428555 is a deficient number, since it is larger than the sum of its proper divisors (46587797).

125428555 is an equidigital number, since it uses as much as digits as its factorization.

125428555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3583685.

The product of its digits is 80000, while the sum is 37.

The square root of 125428555 is about 11199.4890508451. The cubic root of 125428555 is about 500.5707548965.

The spelling of 125428555 in words is "one hundred twenty-five million, four hundred twenty-eight thousand, five hundred fifty-five".