65250104481 has 9 divisors (see below), whose sum is σ = 94251257841. Its totient is φ = 43499558772.

The previous prime is 65250104461. The next prime is 65250104537. The reversal of 65250104481 is 18440105256.

It is a happy number.

The square root of 65250104481 is 255441.

It is a perfect power (a square), and thus also a powerful number.

65250104481 is a `hidden beast` number, since 6 + 525 + 0 + 10 + 44 + 81 = 666.

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 65250104481 - 2²⁹ = 64713233569 is a prime.

It is a super-2 number, since 2×65250104481² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (65250104441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 723750 + ... + 808896.

Almost surely, 2^65250104481 is an apocalyptic number.

65250104481 is the 255441-st square number.

65250104481 is the 127721-st centered octagonal number.

It is an amenable number.

65250104481 is a deficient number, since it is larger than the sum of its proper divisors (29001153360).

65250104481 is an frugal number, since it uses more digits than its factorization.

65250104481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170300 (or 85150 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 36.

Multiplying 65250104481 by its sum of digits (36), we get a square (2349003761316 = 1532646²).

The spelling of 65250104481 in words is "sixty-five billion, two hundred fifty million, one hundred four thousand, four hundred eighty-one".