125563377 has 16 divisors (see below), whose sum is σ = 178569792. Its totient is φ = 78205440.

The previous prime is 125563351. The next prime is 125563379. The reversal of 125563377 is 773365521.

It is not a de Polignac number, because 125563377 - 2⁸ = 125563121 is a prime.

It is not an unprimeable number, because it can be changed into a prime (125563379) 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 15 ways as a sum of consecutive naturals, for example, 1999 + ... + 15972.

It is an arithmetic number, because the mean of its divisors is an integer number (11160612).

Almost surely, 2^125563377 is an apocalyptic number.

125563377 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

125563377 is a deficient number, since it is larger than the sum of its proper divisors (53006415).

125563377 is a wasteful number, since it uses less digits than its factorization.

125563377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18128.

The product of its digits is 132300, while the sum is 39.

The square root of 125563377 is about 11205.5065481218. The cubic root of 125563377 is about 500.7500436398.

The spelling of 125563377 in words is "one hundred twenty-five million, five hundred sixty-three thousand, three hundred seventy-seven".