64554025 has 6 divisors (see below), whose sum is σ = 80047022. Its totient is φ = 51643200.

The previous prime is 64554013. The next prime is 64554041. The reversal of 64554025 is 52045546.

It can be written as a sum of positive squares in 3 ways, for example, as 2286144 + 62267881 = 1512^2 + 7891^2 .

It is not a de Polignac number, because 64554025 - 2¹⁵ = 64521257 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1291056 + ... + 1291105.

Almost surely, 2^64554025 is an apocalyptic number.

It is an amenable number.

64554025 is a deficient number, since it is larger than the sum of its proper divisors (15492997).

64554025 is a wasteful number, since it uses less digits than its factorization.

64554025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2582171 (or 2582166 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 31.

The square root of 64554025 is about 8034.5519476820. The cubic root of 64554025 is about 401.1509041233.

The spelling of 64554025 in words is "sixty-four million, five hundred fifty-four thousand, twenty-five".