125565655 has 16 divisors (see below), whose sum is σ = 164692224. Its totient is φ = 91491840.

The previous prime is 125565653. The next prime is 125565659. The reversal of 125565655 is 556565521.

It is not a de Polignac number, because 125565655 - 2¹ = 125565653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125565653) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21192 + ... + 26461.

It is an arithmetic number, because the mean of its divisors is an integer number (10293264).

Almost surely, 2^125565655 is an apocalyptic number.

125565655 is a deficient number, since it is larger than the sum of its proper divisors (39126569).

125565655 is a wasteful number, since it uses less digits than its factorization.

125565655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47706.

The product of its digits is 225000, while the sum is 40.

The square root of 125565655 is about 11205.6081941142. The cubic root of 125565655 is about 500.7530718628.

The spelling of 125565655 in words is "one hundred twenty-five million, five hundred sixty-five thousand, six hundred fifty-five".