125005051 has 16 divisors (see below), whose sum is σ = 134323200. Its totient is φ = 116071200.

The previous prime is 125005019. The next prime is 125005061. The reversal of 125005051 is 150500521.

It is a cyclic number.

It is not a de Polignac number, because 125005051 - 2⁵ = 125005019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125005061) 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 15 ways as a sum of consecutive naturals, for example, 189360 + ... + 190018.

It is an arithmetic number, because the mean of its divisors is an integer number (8395200).

Almost surely, 2^125005051 is an apocalyptic number.

125005051 is a deficient number, since it is larger than the sum of its proper divisors (9318149).

125005051 is a wasteful number, since it uses less digits than its factorization.

125005051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 930.

The product of its (nonzero) digits is 250, while the sum is 19.

The square root of 125005051 is about 11180.5657728042. The cubic root of 125005051 is about 500.0067345760.

Adding to 125005051 its reverse (150500521), we get a palindrome (275505572).

The spelling of 125005051 in words is "one hundred twenty-five million, five thousand, fifty-one".