125738555 has 4 divisors (see below), whose sum is σ = 150886272. Its totient is φ = 100590840.

The previous prime is 125738551. The next prime is 125738581. The reversal of 125738555 is 555837521.

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

It is not a de Polignac number, because 125738555 - 2² = 125738551 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125738551) 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 3 ways as a sum of consecutive naturals, for example, 12573851 + ... + 12573860.

It is an arithmetic number, because the mean of its divisors is an integer number (37721568).

Almost surely, 2^125738555 is an apocalyptic number.

125738555 is a deficient number, since it is larger than the sum of its proper divisors (25147717).

125738555 is an equidigital number, since it uses as much as digits as its factorization.

125738555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25147716.

The product of its digits is 210000, while the sum is 41.

The square root of 125738555 is about 11213.3204270635. The cubic root of 125738555 is about 500.9828069154.

The spelling of 125738555 in words is "one hundred twenty-five million, seven hundred thirty-eight thousand, five hundred fifty-five".