125155305 has 48 divisors (see below), whose sum is σ = 246969216. Its totient is φ = 58037760.

The previous prime is 125155291. The next prime is 125155307. The reversal of 125155305 is 503551521.

125155305 is a `hidden beast` number, since 125 + 1 + 5 + 530 + 5 = 666.

It is not a de Polignac number, because 125155305 - 2⁵ = 125155273 is a prime.

It is not an unprimeable number, because it can be changed into a prime (125155307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5889 + ... + 16881.

It is an arithmetic number, because the mean of its divisors is an integer number (5145192).

Almost surely, 2^125155305 is an apocalyptic number.

125155305 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

125155305 is a deficient number, since it is larger than the sum of its proper divisors (121813911).

125155305 is a wasteful number, since it uses less digits than its factorization.

125155305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11038 (or 11035 counting only the distinct ones).

The product of its (nonzero) digits is 3750, while the sum is 27.

The square root of 125155305 is about 11187.2831822565. The cubic root of 125155305 is about 500.2069876337.

The spelling of 125155305 in words is "one hundred twenty-five million, one hundred fifty-five thousand, three hundred five".