65125005 has 64 divisors (see below), whose sum is σ = 118914048. Its totient is φ = 30159360.

The previous prime is 65125001. The next prime is 65125019. The reversal of 65125005 is 50052156.

It is not a de Polignac number, because 65125005 - 2² = 65125001 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65125001) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 475297 + ... + 475433.

It is an arithmetic number, because the mean of its divisors is an integer number (1858032).

Almost surely, 2^65125005 is an apocalyptic number.

It is an amenable number.

65125005 is a deficient number, since it is larger than the sum of its proper divisors (53789043).

65125005 is a wasteful number, since it uses less digits than its factorization.

65125005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266.

The product of its (nonzero) digits is 1500, while the sum is 24.

The square root of 65125005 is about 8070.0065055736. The cubic root of 65125005 is about 402.3301599450.

The spelling of 65125005 in words is "sixty-five million, one hundred twenty-five thousand, five".