125644755 has 16 divisors (see below), whose sum is σ = 202502304. Its totient is φ = 66520320.

The previous prime is 125644723. The next prime is 125644769. The reversal of 125644755 is 557446521.

It is not a de Polignac number, because 125644755 - 2⁵ = 125644723 is a prime.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 28516 + ... + 32625.

It is an arithmetic number, because the mean of its divisors is an integer number (12656394).

Almost surely, 2^125644755 is an apocalyptic number.

125644755 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

125644755 is a deficient number, since it is larger than the sum of its proper divisors (76857549).

125644755 is a wasteful number, since it uses less digits than its factorization.

125644755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61286.

The product of its digits is 168000, while the sum is 39.

The square root of 125644755 is about 11209.1371211169. The cubic root of 125644755 is about 500.8581994779.

The spelling of 125644755 in words is "one hundred twenty-five million, six hundred forty-four thousand, seven hundred fifty-five".