125664055 has 16 divisors (see below), whose sum is σ = 165132288. Its totient is φ = 91044000.

The previous prime is 125664053. The next prime is 125664089. The reversal of 125664055 is 550466521.

It is not a de Polignac number, because 125664055 - 2¹ = 125664053 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 125664055.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125664053) 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, 10690 + ... + 19120.

It is an arithmetic number, because the mean of its divisors is an integer number (10320768).

Almost surely, 2^125664055 is an apocalyptic number.

125664055 is a deficient number, since it is larger than the sum of its proper divisors (39468233).

125664055 is a wasteful number, since it uses less digits than its factorization.

125664055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8718.

The product of its (nonzero) digits is 36000, while the sum is 34.

The square root of 125664055 is about 11209.9979928633. The cubic root of 125664055 is about 500.8838433878.

The spelling of 125664055 in words is "one hundred twenty-five million, six hundred sixty-four thousand, fifty-five".