65525345501 has 18 divisors (see below), whose sum is σ = 83782710270. Its totient is φ = 51058706160.

The previous prime is 65525345453. The next prime is 65525345503. The reversal of 65525345501 is 10554352556.

It can be written as a sum of positive squares in only one way, i.e., 42045912601 + 23479432900 = 205051^2 + 153230^2 .

It is not a de Polignac number, because 65525345501 - 2¹⁰ = 65525344477 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65525345503) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 5519906 + ... + 5531763.

It is an arithmetic number, because the mean of its divisors is an integer number (4654595015).

Almost surely, 2^65525345501 is an apocalyptic number.

It is an amenable number.

65525345501 is a deficient number, since it is larger than the sum of its proper divisors (18257364769).

65525345501 is a wasteful number, since it uses less digits than its factorization.

65525345501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11051705 (or 11051687 counting only the distinct ones).

The product of its (nonzero) digits is 450000, while the sum is 41.

The spelling of 65525345501 in words is "sixty-five billion, five hundred twenty-five million, three hundred forty-five thousand, five hundred one".