64826025 has 24 divisors (see below), whose sum is σ = 116924064. Its totient is φ = 31430400.

The previous prime is 64826017. The next prime is 64826077. The reversal of 64826025 is 52062846.

It is not a de Polignac number, because 64826025 - 2³ = 64826017 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 38464 + ... + 40113.

It is an arithmetic number, because the mean of its divisors is an integer number (4871836).

Almost surely, 2^64826025 is an apocalyptic number.

It is an amenable number.

64826025 is a deficient number, since it is larger than the sum of its proper divisors (52098039).

64826025 is a wasteful number, since it uses less digits than its factorization.

64826025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78601 (or 78596 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 64826025 is about 8051.4610475367. The cubic root of 64826025 is about 401.7135344342.

The spelling of 64826025 in words is "sixty-four million, eight hundred twenty-six thousand, twenty-five".