125552558 has 4 divisors (see below), whose sum is σ = 188328840. Its totient is φ = 62776278.

The previous prime is 125552549. The next prime is 125552563. The reversal of 125552558 is 855255521.

It is a semiprime because it is the product of two primes.

It is a Curzon number.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 31388138 + ... + 31388141.

It is an arithmetic number, because the mean of its divisors is an integer number (47082210).

Almost surely, 2^125552558 is an apocalyptic number.

125552558 is a deficient number, since it is larger than the sum of its proper divisors (62776282).

125552558 is an equidigital number, since it uses as much as digits as its factorization.

125552558 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62776281.

The product of its digits is 100000, while the sum is 38.

The square root of 125552558 is about 11205.0237839997. The cubic root of 125552558 is about 500.7356610747.

The spelling of 125552558 in words is "one hundred twenty-five million, five hundred fifty-two thousand, five hundred fifty-eight".