6564025 has 24 divisors (see below), whose sum is σ = 9235520. Its totient is φ = 4587840.

The previous prime is 6564011. The next prime is 6564043. The reversal of 6564025 is 5204656.

It is not a de Polignac number, because 6564025 - 2¹³ = 6555833 is a prime.

6564025 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 6563984 and 6564002.

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, 5644 + ... + 6706.

Almost surely, 2^6564025 is an apocalyptic number.

6564025 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

6564025 is a deficient number, since it is larger than the sum of its proper divisors (2671495).

6564025 is a wasteful number, since it uses less digits than its factorization.

6564025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1105 (or 1100 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 6564025 is about 2562.0353237221. The cubic root of 6564025 is about 187.2363108181.

The spelling of 6564025 in words is "six million, five hundred sixty-four thousand, twenty-five".