125005775655051 has 12 divisors (see below), whose sum is σ = 180579614559240. Its totient is φ = 83329930051200.

The previous prime is 125005775655029. The next prime is 125005775655067. The reversal of 125005775655051 is 150556577500521.

125005775655051 is a `hidden beast` number, since 1 + 2 + 5 + 0 + 0 + 5 + 7 + 75 + 65 + 505 + 1 = 666.

It is not a de Polignac number, because 125005775655051 - 2⁷ = 125005775654923 is a prime.

It is not an unprimeable number, because it can be changed into a prime (125005775655851) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 604367425 + ... + 604574226.

It is an arithmetic number, because the mean of its divisors is an integer number (15048301213270).

Almost surely, 2^{125005775655051} is an apocalyptic number.

125005775655051 is a deficient number, since it is larger than the sum of its proper divisors (55573838904189).

125005775655051 is a wasteful number, since it uses less digits than its factorization.

125005775655051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1208953146 (or 1208953143 counting only the distinct ones).

The product of its (nonzero) digits is 9187500, while the sum is 54.

The spelling of 125005775655051 in words is "one hundred twenty-five trillion, five billion, seven hundred seventy-five million, six hundred fifty-five thousand, fifty-one".