65503323025 has 96 divisors (see below), whose sum is σ = 96694311168. Its totient is φ = 43089715200.

The previous prime is 65503323007. The next prime is 65503323031. The reversal of 65503323025 is 52032330556.

It is a de Polignac number, because none of the positive numbers 2^k-65503323025 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 140263842 + ... + 140264308.

It is an arithmetic number, because the mean of its divisors is an integer number (1007232408).

Almost surely, 2^65503323025 is an apocalyptic number.

It is an amenable number.

65503323025 is a deficient number, since it is larger than the sum of its proper divisors (31190988143).

65503323025 is a wasteful number, since it uses less digits than its factorization.

65503323025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 811 (or 806 counting only the distinct ones).

The product of its (nonzero) digits is 81000, while the sum is 34.

The spelling of 65503323025 in words is "sixty-five billion, five hundred three million, three hundred twenty-three thousand, twenty-five".