64925588025 has 27 divisors (see below), whose sum is σ = 116295788271. Its totient is φ = 34624941840.

The previous prime is 64925588003. The next prime is 64925588069. The reversal of 64925588025 is 52088552946.

The square root of 64925588025 is 254805.

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

64925588025 is a `hidden beast` number, since 6 + 4 + 9 + 2 + 558 + 80 + 2 + 5 = 666.

It can be written as a sum of positive squares in only one way, i.e., 23373211689 + 41552376336 = 152883^2 + 203844^2 .

It is not a de Polignac number, because 64925588025 - 2⁷ = 64925587897 is a prime.

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 26 ways as a sum of consecutive naturals, for example, 3813582 + ... + 3830568.

Almost surely, 2^64925588025 is an apocalyptic number.

64925588025 is the 254805-th square number.

64925588025 is the 127403-rd centered octagonal number.

It is an amenable number.

64925588025 is a deficient number, since it is larger than the sum of its proper divisors (51370200246).

64925588025 is an frugal number, since it uses more digits than its factorization.

64925588025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33990 (or 16995 counting only the distinct ones).

The product of its (nonzero) digits is 6912000, while the sum is 54.

The spelling of 64925588025 in words is "sixty-four billion, nine hundred twenty-five million, five hundred eighty-eight thousand, twenty-five".