65450253001 has 36 divisors (see below), whose sum is σ = 78531642612. Its totient is φ = 54385277184.

The previous prime is 65450252999. The next prime is 65450253013. The reversal of 65450253001 is 10035205456.

It can be written as a sum of positive squares in 2 ways, for example, as 35391015625 + 30059237376 = 188125^2 + 173376^2 .

It is not a de Polignac number, because 65450253001 - 2¹ = 65450252999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65450259001) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 12409701 + ... + 12414973.

It is an arithmetic number, because the mean of its divisors is an integer number (2181434517).

Almost surely, 2^65450253001 is an apocalyptic number.

It is an amenable number.

65450253001 is a deficient number, since it is larger than the sum of its proper divisors (13081389611).

65450253001 is a wasteful number, since it uses less digits than its factorization.

65450253001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5510 (or 5460 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 31.

Adding to 65450253001 its reverse (10035205456), we get a palindrome (75485458457).

The spelling of 65450253001 in words is "sixty-five billion, four hundred fifty million, two hundred fifty-three thousand, one".