64583983449525 has 48 divisors (see below), whose sum is σ = 109556567180928. Its totient is φ = 33551417088000.

The previous prime is 64583983449497. The next prime is 64583983449547. The reversal of 64583983449525 is 52594438938546.

64583983449525 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 64583983449525 - 2⁵ = 64583983449493 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (75).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 14702244 + ... + 18582893.

It is an arithmetic number, because the mean of its divisors is an integer number (2282428482936).

Almost surely, 2^{64583983449525} is an apocalyptic number.

It is an amenable number.

64583983449525 is a deficient number, since it is larger than the sum of its proper divisors (44972583731403).

64583983449525 is a wasteful number, since it uses less digits than its factorization.

64583983449525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33285822 (or 33285817 counting only the distinct ones).

The product of its digits is 4478976000, while the sum is 75.

The spelling of 64583983449525 in words is "sixty-four trillion, five hundred eighty-three billion, nine hundred eighty-three million, four hundred forty-nine thousand, five hundred twenty-five".