125551065 has 16 divisors (see below), whose sum is σ = 201022848. Its totient is φ = 66913536.

The previous prime is 125551051. The next prime is 125551091. The reversal of 125551065 is 560155521.

It is not a de Polignac number, because 125551065 - 2⁵ = 125551033 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 34524 + ... + 37986.

It is an arithmetic number, because the mean of its divisors is an integer number (12563928).

Almost surely, 2^125551065 is an apocalyptic number.

125551065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

125551065 is a deficient number, since it is larger than the sum of its proper divisors (75471783).

125551065 is a wasteful number, since it uses less digits than its factorization.

125551065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5888.

The product of its (nonzero) digits is 7500, while the sum is 30.

The square root of 125551065 is about 11204.9571618994. The cubic root of 125551065 is about 500.7336762451.

The spelling of 125551065 in words is "one hundred twenty-five million, five hundred fifty-one thousand, sixty-five".